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152-433: The IOD involves an aperiodic oscillation of sea-surface temperatures (SST), between "positive", "neutral" and "negative" phases. A positive phase sees greater-than-average sea-surface temperatures and greater precipitation in the western Indian Ocean region, with a corresponding cooling of waters in the eastern Indian Ocean—which tends to cause droughts in adjacent land areas of Indonesia and Australia . The negative phase of

304-526: A special autonomous status ( otonomi khusus ) from the central government. Aceh, a conservative Islamic territory , has the right to create some aspects of an independent legal system implementing sharia . Yogyakarta is the only pre-colonial monarchy legally recognised within Indonesia, with the positions of governor and vice governor being prioritised for the reigning Sultan of Yogyakarta and Duke of Pakualaman , respectively. The six Papuan provinces are

456-549: A broader sense also includes previous long-term changes to Earth's climate. The current rise in global temperatures is driven by human activities , especially fossil fuel burning since the Industrial Revolution . Fossil fuel use, deforestation , and some agricultural and industrial practices release greenhouse gases . These gases absorb some of the heat that the Earth radiates after it warms from sunlight , warming

608-587: A decadal timescale. Other changes are caused by an imbalance of energy from external forcings . Examples of these include changes in the concentrations of greenhouse gases , solar luminosity , volcanic eruptions, and variations in the Earth's orbit around the Sun. To determine the human contribution to climate change, unique "fingerprints" for all potential causes are developed and compared with both observed patterns and known internal climate variability . For example, solar forcing—whose fingerprint involves warming

760-456: A dividing line ( Wallace Line ) between the distribution of Indonesia's Asian and Australasian species. It runs roughly north–south along the edge of the Sunda Shelf, between Kalimantan and Sulawesi, and along the deep Lombok Strait , between Lombok and Bali. Flora and fauna on the west of the line are generally Asian, while east from Lombok is increasingly Australian until the tipping point at

912-700: A legislature ( DPRD Kabupaten/Kota ). The third level are the districts ( kecamatan , distrik in Papua , or kapanewon and kemantren in Yogyakarta ), and the fourth are the villages (either desa , kelurahan , kampung , nagari in West Sumatra , or gampong in Aceh ). The village is the lowest level of government administration. It is divided into several community groups ( rukun warga , RW), which are further divided into neighbourhood groups ( rukun tetangga , RT). In Java,

1064-482: A longer term target to further increase the coverage of its marine protected areas to 10% of its territorial waters, or 31 million hectares. Indonesia is a republic with a presidential system. Following the fall of the New Order in 1998, political and governmental structures have undergone sweeping reforms, with four constitutional amendments revamping the executive, legislative and judicial branches. Chief among them

1216-532: A lot of light to being dark after the ice has melted, they start absorbing more heat . Local black carbon deposits on snow and ice also contribute to Arctic warming. Arctic surface temperatures are increasing between three and four times faster than in the rest of the world. Melting of ice sheets near the poles weakens both the Atlantic and the Antarctic limb of thermohaline circulation , which further changes

1368-412: A marked increase in temperature. Ongoing changes in climate have had no precedent for several thousand years. Multiple independent datasets all show worldwide increases in surface temperature, at a rate of around 0.2 °C per decade. The 2014–2023 decade warmed to an average 1.19 °C [1.06–1.30 °C] compared to the pre-industrial baseline (1850–1900). Not every single year was warmer than

1520-408: A physical climate model. These models simulate how population, economic growth , and energy use affect—and interact with—the physical climate. With this information, these models can produce scenarios of future greenhouse gas emissions. This is then used as input for physical climate models and carbon cycle models to predict how atmospheric concentrations of greenhouse gases might change. Depending on

1672-533: A press bureau in the Netherlands, Indonesisch Pers-bureau . Fossilised remains of Homo erectus , popularly known as the " Java Man ", suggest the Indonesian archipelago was inhabited two million to 500,000 years ago. Homo sapiens reached the region around 43,000 BCE. Austronesian peoples , who form the majority of the modern population, migrated to Southeast Asia from what is now Taiwan. They arrived in

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1824-471: A range of sea and coastal ecosystems, including beaches , dunes, estuaries, mangroves, coral reefs, seagrass beds, coastal mudflats, tidal flats, algal beds, and small island ecosystems. Indonesia is one of the Coral Triangle countries with the world's most enormous diversity of coral reef fish , with more than 1,650 species in eastern Indonesia only. British naturalist Alfred Russel Wallace described

1976-457: A result of climate change. Global sea level is rising as a consequence of thermal expansion and the melting of glaciers and ice sheets . Sea level rise has increased over time, reaching 4.8 cm per decade between 2014 and 2023. Over the 21st century, the IPCC projects 32–62 cm of sea level rise under a low emission scenario, 44–76 cm under an intermediate one and 65–101 cm under

2128-474: A result. The World Health Organization calls climate change one of the biggest threats to global health in the 21st century. Societies and ecosystems will experience more severe risks without action to limit warming . Adapting to climate change through efforts like flood control measures or drought-resistant crops partially reduces climate change risks, although some limits to adaptation have already been reached. Poorer communities are responsible for

2280-417: A small share of global emissions , yet have the least ability to adapt and are most vulnerable to climate change . Many climate change impacts have been observed in the first decades of the 21st century, with 2023 the warmest on record at +1.48 °C (2.66 °F) since regular tracking began in 1850. Additional warming will increase these impacts and can trigger tipping points , such as melting all of

2432-421: A strong and concurrent La Niña, caused the 2010–2011 Queensland floods and the 2011 Victorian floods . In 2008, Nerilie Abram used coral records from the eastern and western Indian Ocean to construct a coral Dipole Mode Index extending back to 1846 AD. This extended perspective on IOD behaviour suggested that positive IOD events increased in strength and frequency during the 20th century. A positive IOD

2584-538: A very high emission scenario. Marine ice sheet instability processes in Antarctica may add substantially to these values, including the possibility of a 2-meter sea level rise by 2100 under high emissions. Climate change has led to decades of shrinking and thinning of the Arctic sea ice . While ice-free summers are expected to be rare at 1.5 °C degrees of warming, they are set to occur once every three to ten years at

2736-519: A warming level of 2 °C. Higher atmospheric CO 2 concentrations cause more CO 2 to dissolve in the oceans, which is making them more acidic . Because oxygen is less soluble in warmer water, its concentrations in the ocean are decreasing , and dead zones are expanding. Greater degrees of global warming increase the risk of passing through ' tipping points '—thresholds beyond which certain major impacts can no longer be avoided even if temperatures return to their previous state. For instance,

2888-509: A wealth of Asian fauna. Large species such as the Sumatran tiger , rhinoceros, orangutan, Asian elephant , and leopard were once abundant as far east as Bali, but numbers and distribution have dwindled drastically. Having been long separated from the continental landmasses, Sulawesi, Nusa Tenggara, and Maluku have developed their unique flora and fauna. Papua was part of the Australian landmass and

3040-569: Is US$ 15,835, while nominal per capita GDP is US$ 5,108. Services are the economy's largest sector and account for 43.4% of GDP (2018), followed by industry (39.7%) and agriculture (12.8%). Since 2009, it has employed more people than other sectors, accounting for 47.7% of the total labour force, followed by agriculture (30.2%) and industry (21.9%). Over time, the structure of the economy has changed considerably. Historically, it has been weighted heavily towards agriculture, reflecting both its stage of economic development and government policies in

3192-624: Is a founding member of the Association of Southeast Asian Nations ( ASEAN ) and the East Asia Summit . In common with most of the Muslim world , Indonesia does not have diplomatic relations with Israel and has actively supported Palestine . However, observers have pointed out that Indonesia has ties with Israel, albeit discreetly. Indonesia has been a member of the United Nations since 1950 and

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3344-557: Is an estimated total sea level rise of 2.3 metres per degree Celsius (4.2 ft/°F) after 2000 years. Oceanic CO 2 uptake is slow enough that ocean acidification will also continue for hundreds to thousands of years. Deep oceans (below 2,000 metres (6,600 ft)) are also already committed to losing over 10% of their dissolved oxygen by the warming which occurred to date. Further, the West Antarctic ice sheet appears committed to practically irreversible melting, which would increase

3496-615: Is associated with droughts in Southeast Asia and Australia. Extreme positive-IOD events are expected. A 2009 study by Ummenhofer et al. at the University of New South Wales (UNSW) Climate Change Research Centre has demonstrated a significant correlation between the IOD and drought in the southern half of Australia, in particular the south-east. Every major southern drought since 1889 has coincided with positive-neutral IOD fluctuations including

3648-404: Is believed to have caused a global volcanic winter and cooling of the climate and subsequently led to a genetic bottleneck in human evolution, though this is still in debate. The 1815 eruption of Mount Tambora and the 1883 eruption of Krakatoa were among the largest in recorded history. The former caused 92,000 deaths and created an umbrella of volcanic ash that spread and blanketed parts of

3800-711: Is determined by modelling the carbon cycle and climate sensitivity to greenhouse gases. According to UNEP , global warming can be kept below 1.5 °C with a 50% chance if emissions after 2023 do not exceed 200 gigatonnes of CO 2 . This corresponds to around 4 years of current emissions. To stay under 2.0 °C, the carbon budget is 900 gigatonnes of CO 2 , or 16 years of current emissions. The climate system experiences various cycles on its own which can last for years, decades or even centuries. For example, El Niño events cause short-term spikes in surface temperature while La Niña events cause short term cooling. Their relative frequency can affect global temperature trends on

3952-524: Is elected for a five-year term, as are the party-aligned members of the DPR and the non-partisan DPD. Beginning with the 2015 local elections , elections for governors and mayors have occurred on the same date. In 2014, the Constitutional Court ruled that legislative and presidential elections would be held simultaneously, starting in 2019. Indonesia has several levels of subdivisions. The first level are

4104-564: Is expected that the Western Indian ocean will warm at accelerated rates due to climate change leading to an increasing occurrence of positive IODs. This is likely to result in the increasing intensity of rainfall during the short rain period over East Africa. A 2018 study by Hameed et al. at the University of Aizu simulated the impact of a positive IOD event on Pacific surface wind and SST variations. They show that IOD-induced surface wind anomalies can produce El Nino-like SST anomalies, with

4256-612: Is extremely rare with only two such events recorded, 1913–1914 and the three consecutive events from 2006 to 2008 which preceded the Black Saturday bushfires . Modelling suggests that consecutive positive events could be expected to occur twice over a 1,000-year period. The positive IOD in 2007 evolved together with La Niña , which is a very rare phenomenon that has happened only once in the available historical records (in 1967). A strong negative IOD developed in October 2010, which, coupled with

4408-403: Is generally below average in both regional and global context. Indonesia has one of the world's fastest deforestation rates. In 2020, forests covered approximately 49.1% of the country's land area, down from 87% in 1950. Since the 1970s, log production, various plantations and agriculture have been responsible for much of the deforestation in Indonesia . Most recently, it has been driven by

4560-718: Is highly unstable, making it a site of numerous volcanoes and frequent earthquakes. It lies on the Pacific Ring of Fire , where the Indo-Australian Plate and the Pacific Plate are pushed under the Eurasian Plate , where they melt at about 100 kilometres (62 miles) deep. A string of volcanoes runs through Sumatra, Java , Bali and Nusa Tenggara , and then to the Banda Islands of Maluku to northeastern Sulawesi . Of

4712-495: Is home to a unique fauna and flora closely related to that of Australia, including over 600 bird species. Indonesia is second only to Australia in terms of total endemic species, with 36% of its 1,531 species of bird and 39% of its 515 species of mammal being endemic. Indonesia harbours 83% of Southeast Asia's old-growth forest , and the highest amount of forest carbon in the region. Tropical seas surround Indonesia's 80,000 kilometres (50,000 miles) of coastline. The country has

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4864-399: Is independent of where greenhouse gases are emitted, because the gases persist long enough to diffuse across the planet. Since the pre-industrial period, the average surface temperature over land regions has increased almost twice as fast as the global average surface temperature. This is because oceans lose more heat by evaporation and oceans can store a lot of heat . The thermal energy in

5016-643: Is linked to higher than average rainfall during the East African Short Rains (EASR) between October and December. Higher rainfall during the EASR are associated with warm sea-surface temperatures (SST) in the western Indian Ocean and low level westerlies across the equatorial region of the ocean which brings moisture over the East Africa region. The increased rainfall associated with a positive IOD has been found to result in increased flooding over East Africa during

5168-450: Is primarily attributed to sulfate aerosols produced by the combustion of fossil fuels with heavy sulfur concentrations like coal and bunker fuel . Smaller contributions come from black carbon (from combustion of fossil fuels and biomass), and from dust. Globally, aerosols have been declining since 1990 due to pollution controls, meaning that they no longer mask greenhouse gas warming as much. Aerosols also have indirect effects on

5320-444: Is radiating into space. Warming reduces average snow cover and forces the retreat of glaciers . At the same time, warming also causes greater evaporation from the oceans , leading to more atmospheric humidity , more and heavier precipitation . Plants are flowering earlier in spring, and thousands of animal species have been permanently moving to cooler areas. Different regions of the world warm at different rates . The pattern

5472-594: Is reversed, weakening the winds and reducing the amount of moisture picked up and transported across Australia. The consequence is that rainfall in the south-east is well below average during periods of a positive IOD. The study also shows that the IOD has a much more significant effect on the rainfall patterns in south-east Australia than the El Niño-Southern Oscillation (ENSO) in the Pacific Ocean as already shown in several recent studies. A positive IOD

5624-516: Is shaped by feedbacks, which either amplify or dampen the change. Self-reinforcing or positive feedbacks increase the response, while balancing or negative feedbacks reduce it. The main reinforcing feedbacks are the water-vapour feedback , the ice–albedo feedback , and the net effect of clouds. The primary balancing mechanism is radiative cooling , as Earth's surface gives off more heat to space in response to rising temperature. In addition to temperature feedbacks, there are feedbacks in

5776-544: Is some policy recognition of OECMs but no national mechanism for reporting them. There are 55 national parks in Indonesia, of which 9 are predominantly marine . Of these 6 are World Heritage Sites , such as the Tropical Rainforest Heritage of Sumatra that includes three parks. Seven national parks are part of the World Network of Biosphere Reserves and 5 are wetlands of international importance under

5928-542: Is the delegation of power and authority to various regional entities while remaining a unitary state . The President of Indonesia is the head of state and head of government , commander-in-chief of the Indonesian National Armed Forces ( Tentara Nasional Indonesia , TNI), and the director of domestic governance, policy-making, and foreign affairs. The president may serve a maximum of two consecutive five-year terms. The highest representative body at

6080-407: Is the major reason why different climate models project different magnitudes of warming for a given amount of emissions. A climate model is a representation of the physical, chemical and biological processes that affect the climate system. Models include natural processes like changes in the Earth's orbit, historical changes in the Sun's activity, and volcanic forcing. Models are used to estimate

6232-498: Is the world's fourth-most-populous country and the most populous Muslim-majority country . Java, the world's most populous island , is home to more than half of the country's population. Indonesia is a presidential republic with an elected legislature . It has 38 provinces , of which nine have special autonomous status . The country's largest city, Jakarta , is the world's second-most-populous urban area . Indonesia shares land borders with Papua New Guinea , East Timor , and

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6384-742: Is the world's largest producer of nickel . These commodities make up a large portion of the country's exports, with palm oil and coal briquettes as the leading export commodities. In addition to refined and crude petroleum as the primary imports, telephones, vehicle parts and wheat cover the majority of additional imports. China, the United States, Japan, Singapore, India, Malaysia, South Korea, and Thailand are Indonesia's principal export markets and import partners. Climate change Present-day climate change includes both global warming —the ongoing increase in global average temperature —and its wider effects on Earth's climate . Climate change in

6536-417: Is unclear. A related phenomenon driven by climate change is woody plant encroachment , affecting up to 500 million hectares globally. Climate change has contributed to the expansion of drier climate zones, such as the expansion of deserts in the subtropics . The size and speed of global warming is making abrupt changes in ecosystems more likely. Overall, it is expected that climate change will result in

6688-460: The 1895–1902 , 1937–1945 and the 1995–2009 droughts. The research shows that when the IOD is in its negative phase, with cool western Indian Ocean water and warm water off northwest Australia ( Timor Sea ), winds are generated that pick up moisture from the ocean and then sweep down towards southern Australia to deliver higher rainfall. In the IOD-positive phase, the pattern of ocean temperatures

6840-426: The 2006 Yogyakarta earthquake . Indonesia's size, tropical climate, and archipelagic geography support one of the world's highest levels of biodiversity , and it is among the 17 megadiverse countries identified by Conservation International . Its flora and fauna are a mixture of Asian and Australasian species. The Sunda Shelf islands (Sumatra, Java, Borneo, and Bali) were once linked to mainland Asia and have

6992-623: The Army (TNI–AD), Navy (TNI–AL, which includes Marine Corps ), and Air Force (TNI–AU). The army has about 400,000 active-duty personnel. Defence spending in the national budget was 0.7% of gross domestic product (GDP) in 2018, with controversial involvement of military-owned commercial interests and foundations. The Armed Forces were formed during the Indonesian National Revolution when it undertook guerrilla warfare along with informal militia. Since then, territorial lines have formed

7144-507: The Atlantic meridional overturning circulation (AMOC), and irreversible damage to key ecosystems like the Amazon rainforest and coral reefs can unfold in a matter of decades. The long-term effects of climate change on oceans include further ice melt, ocean warming , sea level rise, ocean acidification and ocean deoxygenation. The timescale of long-term impacts are centuries to millennia due to CO 2 's long atmospheric lifetime. The result

7296-491: The Bali myna , Sumatran orangutan , and Javan rhinoceros . Some academics describe the deforestation and other environmental destruction in the country as an ecocide . As of 2023, the government of Indonesia has gazetted 21.3% of the country's land as protected areas , with the intention of developing a new protected area strategy in line with global post-2020 framework . The country also has 411 marine reserves , or 9% of

7448-586: The Constitutional Court ( Mahkamah Konstitusi ) which listens to constitutional and political matters, and the Religious Court ( Pengadilan Agama ), which deals with codified Islamic Personal Law ( sharia ) cases. Additionally, the Judicial Commission ( Komisi Yudisial ) monitors the performance of judges. Since 1999, Indonesia has had a multi-party system. In all legislative elections since

7600-462: The Consumer Price Index have contributed to strong economic growth in recent years. From 2007 to 2019, annual growth accelerated to between 4% and 6% due to improvements in the banking sector and domestic consumption, helping Indonesia weather the 2008–2009 Great Recession , and regain in 2011 the investment grade rating it had lost in 1997. As of 2019 , 9.41% of the population lived below

7752-657: The Earth's energy budget . Sulfate aerosols act as cloud condensation nuclei and lead to clouds that have more and smaller cloud droplets. These clouds reflect solar radiation more efficiently than clouds with fewer and larger droplets. They also reduce the growth of raindrops , which makes clouds more reflective to incoming sunlight. Indirect effects of aerosols are the largest uncertainty in radiative forcing . While aerosols typically limit global warming by reflecting sunlight, black carbon in soot that falls on snow or ice can contribute to global warming. Not only does this increase

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7904-481: The El Niño-Southern Oscillation (ENSO) in the Pacific Ocean . The IOD phenomenon was first identified by climate researchers in 1999. An average of four each positive-negative IOD events occur during each 30-year period with each event lasting around six months. However, there were 12 positive IODs between 1980 and 2009, and no negative events between 1980 and 1992. The occurrence of consecutive positive IOD events

8056-568: The Greenland ice sheet is already melting, but if global warming reaches levels between 1.7 °C and 2.3 °C, its melting will continue until it fully disappears. If the warming is later reduced to 1.5 °C or less, it will still lose a lot more ice than if the warming was never allowed to reach the threshold in the first place. While the ice sheets would melt over millennia, other tipping points would occur faster and give societies less time to respond. The collapse of major ocean currents like

8208-835: The Greenland ice sheet . Under the 2015 Paris Agreement , nations collectively agreed to keep warming "well under 2 °C". However, with pledges made under the Agreement, global warming would still reach about 2.8 °C (5.0 °F) by the end of the century. Limiting warming to 1.5 °C would require halving emissions by 2030 and achieving net-zero emissions by 2050. Fossil fuel use can be phased out by conserving energy and switching to energy sources that do not produce significant carbon pollution. These energy sources include wind , solar , hydro , and nuclear power . Cleanly generated electricity can replace fossil fuels for powering transportation , heating buildings , and running industrial processes. Carbon can also be removed from

8360-626: The Industrial Revolution , naturally-occurring amounts of greenhouse gases caused the air near the surface to be about 33 °C warmer than it would have been in their absence. Human activity since the Industrial Revolution, mainly extracting and burning fossil fuels ( coal , oil , and natural gas ), has increased the amount of greenhouse gases in the atmosphere. In 2022, the concentrations of CO 2 and methane had increased by about 50% and 164%, respectively, since 1750. These CO 2 levels are higher than they have been at any time during

8512-602: The Japanese invasion and occupation ended Dutch rule and encouraged the independence movement. Two days after the surrender of Japan in August 1945, influential nationalist leaders Sukarno and Mohammad Hatta issued the Proclamation of Indonesian Independence . Sukarno, Hatta, and Sutan Sjahrir were appointed president, vice-president, and prime minister, respectively. The Netherlands attempted to re-establish their rule. In

8664-698: The Maluku Islands . Dutch and British traders followed. In 1602, the Dutch established the Dutch East India Company ( Verenigde Oostindische Compagnie ; VOC) and became the dominant European power for almost 200 years. The VOC was dissolved in 1799 following bankruptcy, and the Netherlands established the Dutch East Indies as a nationalised colony. For most of the colonial period , Dutch control over

8816-502: The Organisation of Islamic Cooperation . The name Indonesia derives from the Greek words Indos ( Ἰνδός ) and nesos ( νῆσος ), meaning "Indian islands". The name dates back to the 19th century, far predating the formation of independent Indonesia. In 1850, George Windsor Earl , an English ethnologist , proposed the terms Indunesians —and, his preference, Malayunesians —for

8968-536: The Prosperous Justice Party (PKS). The first general election was held in 1955 to elect members of the DPR and the Constitutional Assembly ( Konstituante ). The most recent elections in 2019 resulted in nine political parties in the DPR, with a parliamentary threshold of 4% of the national vote. At the national level, Indonesians did not elect a president until 2004. Since then, the president

9120-520: The Ramsar convention . Around 9% of the Indonesia surface are national parks. As of 2012 Indonesia had over 100 marine protected areas covering an area of 15.7 million ha, of which 32 where managed by the Ministry of Forestry while the rest where managed by local governments. In 2009 the president Susilo Bambang Yudhoyono declared a target of reaching 20 million hectares by 2020. In 2010 Indonesia also set out

9272-582: The Republic of Indonesia , is a country in Southeast Asia and Oceania , between the Indian and Pacific oceans. It consists of over 17,000 islands , including Sumatra , Java , Sulawesi , and parts of Borneo and New Guinea . Indonesia is the world's largest archipelagic state and the 14th-largest country by area , at 1,904,569 square kilometres (735,358 square miles). With over 280 million people, Indonesia

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9424-683: The UNHRC have raised the issue of human rights abuses committed by Indonesian troops in Papua such as extrajudicial killings and forced disappearances. Past engagements of the army include the conflict against the Netherlands over the Dutch New Guinea , the opposition to the British -sponsored creation of Malaysia (" Konfrontasi "), the mass killings of the Indonesian Communist Party (PKI), and

9576-483: The Weber Line . In his 1869 book, The Malay Archipelago , Wallace described numerous species unique to the area. The region of islands between his line and New Guinea is now termed Wallacea . Indonesia's large and growing population and rapid industrialisation present serious environmental issues . They are often given a lower priority due to high poverty levels and weak, under-resourced governance. Problems include

9728-509: The World Economic Forum , 14.5 million more deaths are expected due to climate change by 2050. 30% of the global population currently live in areas where extreme heat and humidity are already associated with excess deaths. By 2100, 50% to 75% of the global population would live in such areas. While total crop yields have been increasing in the past 50 years due to agricultural improvements, climate change has already decreased

9880-414: The carbon cycle . While plants on land and in the ocean absorb most excess emissions of CO 2 every year, that CO 2 is returned to the atmosphere when biological matter is digested, burns, or decays. Land-surface carbon sink processes, such as carbon fixation in the soil and photosynthesis, remove about 29% of annual global CO 2 emissions. The ocean has absorbed 20 to 30% of emitted CO 2 over

10032-402: The climate system . Solar irradiance has been measured directly by satellites , and indirect measurements are available from the early 1600s onwards. Since 1880, there has been no upward trend in the amount of the Sun's energy reaching the Earth, in contrast to the warming of the lower atmosphere (the troposphere ). The upper atmosphere (the stratosphere ) would also be warming if the Sun

10184-483: The eastern part of Malaysia , as well as maritime borders with Singapore , Peninsular Malaysia , Vietnam , Thailand , the Philippines , Australia , Palau , and India . Despite its large population and densely populated regions, Indonesia has vast areas of wilderness that support one of the world's highest levels of biodiversity . The Indonesian archipelago has been a valuable region for trade since at least

10336-971: The extinction of many species. The oceans have heated more slowly than the land, but plants and animals in the ocean have migrated towards the colder poles faster than species on land. Just as on land, heat waves in the ocean occur more frequently due to climate change, harming a wide range of organisms such as corals, kelp , and seabirds . Ocean acidification makes it harder for marine calcifying organisms such as mussels , barnacles and corals to produce shells and skeletons ; and heatwaves have bleached coral reefs . Harmful algal blooms enhanced by climate change and eutrophication lower oxygen levels, disrupt food webs and cause great loss of marine life. Coastal ecosystems are under particular stress. Almost half of global wetlands have disappeared due to climate change and other human impacts. Plants have come under increased stress from damage by insects. The effects of climate change are impacting humans everywhere in

10488-615: The invasion of East Timor , the latter having been Indonesia's most massive military operation. Indonesia has a mixed economy in which the private sector and government play vital roles. As the only G20 member state in Southeast Asia, the country has the largest economy in the region and is classified as a newly industrialised country . Per a 2023 estimate, it is the world's 16th largest economy by nominal GDP and 7th in terms of GDP at PPP , estimated to be US$ 1.417 trillion and US$ 4.393 trillion, respectively. Per capita GDP in PPP

10640-436: The palm oil industry, which has been criticised for its environmental impact and displacement of local communities. The situation has made Indonesia the world's largest forest-based emitter of greenhouse gases. It also threatens the survival of indigenous and endemic species. The International Union for Conservation of Nature (IUCN) identified 140 species of mammals as threatened and 15 as critically endangered, including

10792-436: The provinces , which have a legislature ( Dewan Perwakilan Rakyat Daerah , DPRD) and an elected governor . A total of 38 provinces have been established from the original eight in 1945, the most recent change being the split of Southwest Papua from the province of West Papua in 2022. The second level are the regencies ( kabupaten ) and cities ( kota ), led by regents ( bupati ) and mayors ( walikota ), respectively, and

10944-432: The socioeconomic scenario and the mitigation scenario, models produce atmospheric CO 2 concentrations that range widely between 380 and 1400 ppm. The environmental effects of climate change are broad and far-reaching, affecting oceans , ice, and weather. Changes may occur gradually or rapidly. Evidence for these effects comes from studying climate change in the past, from modelling, and from modern observations. Since

11096-421: The subsequent cyclone season ). Additionally, the positive IOD dipole contributed to Australian drought & bushfires (convective IOD cycle brings dry air down on Australia) and the 2020 Jakarta floods (convective IOD cycle prevents moist air from going south, thus concentrating it in the tropics), and more recently the 2019–21 East Africa locust infestation . Indonesia Indonesia , officially

11248-410: The tropical rainforest climate found on every large island of Indonesia. Cooler climate types exist in mountainous regions that are 1,300 to 1,500 metres (4,300 to 4,900 feet) above sea level. The oceanic climate (Köppen Cfb ) prevails in highland areas adjacent to rainforest climates, with uniform precipitation year-round. In highland areas near the tropical monsoon and tropical savanna climates ,

11400-405: The 18th century and 1970 there was little net warming, as the warming impact of greenhouse gas emissions was offset by cooling from sulfur dioxide emissions. Sulfur dioxide causes acid rain , but it also produces sulfate aerosols in the atmosphere, which reflect sunlight and cause global dimming . After 1970, the increasing accumulation of greenhouse gases and controls on sulfur pollution led to

11552-413: The 1950s and 1960s to promote agricultural self-sufficiency. A gradual process of industrialisation and urbanisation began in the late 1960s and accelerated in the 1980s as falling oil prices saw the government focus on diversifying away from oil exports and towards manufactured exports. This development continued throughout the 1980s and into the next decade despite the 1990 oil price shock , during which

11704-599: The 1950s, droughts and heat waves have appeared simultaneously with increasing frequency. Extremely wet or dry events within the monsoon period have increased in India and East Asia. Monsoonal precipitation over the Northern Hemisphere has increased since 1980. The rainfall rate and intensity of hurricanes and typhoons is likely increasing , and the geographic range likely expanding poleward in response to climate warming. Frequency of tropical cyclones has not increased as

11856-500: The 1980s, the terms global warming and climate change became more common, often being used interchangeably. Scientifically, global warming refers only to increased surface warming, while climate change describes both global warming and its effects on Earth's climate system , such as precipitation changes. Climate change can also be used more broadly to include changes to the climate that have happened throughout Earth's history. Global warming —used as early as 1975 —became

12008-411: The 400 volcanoes, around 130 are active. Between 1972 and 1991, there were 29 volcanic eruptions, mostly on Java. Volcanic ash has made agricultural conditions unpredictable in some areas. However, it has also resulted in fertile soils, a factor in historically sustaining the high population densities of Java and Bali. A massive supervolcano erupted at present-day Lake Toba around 70,000 BCE. It

12160-440: The Arctic is forcing many species to relocate or become extinct . Even if efforts to minimize future warming are successful, some effects will continue for centuries. These include ocean heating , ocean acidification and sea level rise . Climate change threatens people with increased flooding , extreme heat, increased food and water scarcity, more disease, and economic loss . Human migration and conflict can also be

12312-435: The Arctic is another major feedback, this reduces the reflectivity of the Earth's surface in the region and accelerates Arctic warming . This additional warming also contributes to permafrost thawing, which releases methane and CO 2 into the atmosphere. Around half of human-caused CO 2 emissions have been absorbed by land plants and by the oceans. This fraction is not static and if future CO 2 emissions decrease,

12464-542: The CO 2 released by the chemical reactions for making cement , steel , aluminum , and fertilizer . Methane emissions come from livestock , manure, rice cultivation , landfills, wastewater, and coal mining , as well as oil and gas extraction . Nitrous oxide emissions largely come from the microbial decomposition of fertilizer . While methane only lasts in the atmosphere for an average of 12 years, CO 2 lasts much longer. The Earth's surface absorbs CO 2 as part of

12616-564: The Cold War. Numerous attempts by the United States and the Soviet Union , and China to some degree, culminated in the 1965 coup attempt and subsequent upheaval that led to a reorientation of foreign policy. Quiet alignment with the Western world while maintaining a non-aligned stance has characterised Indonesia's foreign policy since then. Today, it maintains close relations with its neighbours and

12768-462: The EASR period. During a particularly strong positive IOD at the end of 2019, average rainfall over East Africa was 300% higher than normal. This higher than average rainfall has resulted in a high prevalence of flooding in the countries of Djibouti, Ethiopia, Kenya, Uganda, Tanzania, Somalia and South Sudan. Torrential rainfall and increased risk of landslides over the region during this period often results in widespread destruction and loss of life. It

12920-604: The Earth will be able to absorb up to around 70%. If they increase substantially, it'll still absorb more carbon than now, but the overall fraction will decrease to below 40%. This is because climate change increases droughts and heat waves that eventually inhibit plant growth on land, and soils will release more carbon from dead plants when they are warmer . The rate at which oceans absorb atmospheric carbon will be lowered as they become more acidic and experience changes in thermohaline circulation and phytoplankton distribution. Uncertainty over feedbacks, particularly cloud cover,

13072-551: The East ( de Oost ); and Insulinde . After 1900, Indonesia became more common in academic circles outside the Netherlands, and native nationalist groups adopted it for political expression. Adolf Bastian of the University of Berlin popularized the name through his book Indonesien oder die Inseln des Malayischen Archipels, 1884–1894 . The first native scholar to use the name was Ki Hajar Dewantara when in 1913, he established

13224-541: The GDP rose at an average rate of 7.1%. As a result, the official poverty rate fell from 60% to 15%. Trade barriers reduction from the mid-1980s made the economy more globally integrated. The growth ended with the 1997 Asian financial crisis that severely impacted the economy, including a 13.1% real GDP contraction in 1998 and a 78% inflation. The economy reached its low point in mid-1999 with only 0.8% real GDP growth. Relatively steady inflation and an increase in GDP deflator and

13376-464: The IOD brings about the opposite conditions, with warmer water and greater precipitation in the eastern Indian Ocean, and cooler and drier conditions in the west. The IOD also affects the strength of monsoons over the Indian subcontinent. A significant positive IOD occurred in 1997–98, with another in 2006. The IOD is one aspect of the general cycle of global climate, interacting with similar phenomena like

13528-449: The IOD's impact on SST being the strongest in the far-eastern Pacific. They further demonstrated that IOD-ENSO interaction is a key for the generation of Super El Ninos. A positive IOD cycle is related to multiple cyclones that ravaged East Africa in 2019, killing thousands. The unusually active 2018-2019 South-West Indian Ocean cyclone season was aided by warmer than normal waters offshore (starting with Cyclone Idai and continuing on to

13680-510: The Philippines, Palau, and Australia. At 4,884 metres (16,024 ft), Puncak Jaya is Indonesia's highest peak, and Lake Toba in Sumatra is the largest lake, with an area of 1,145 km (442 sq mi). Indonesia's largest rivers are in Kalimantan and New Guinea and include Kapuas , Barito , Mamberamo , Sepik and Mahakam . They serve as communication and transport links between

13832-590: The Spice Islands of Maluku during the Age of Discovery . Following three and a half centuries of Dutch colonialism , Indonesia secured its independence after World War II . Indonesia's history has since been turbulent, with challenges posed by natural disasters, corruption, separatism, a democratisation process, and periods of rapid economic growth. Indonesia consists of thousands of distinct native ethnic groups and hundreds of linguistic groups, with Javanese being

13984-488: The UN) scattered over both sides of the equator, around 6,000 of which are inhabited. The largest are Sumatra , Java , Borneo (shared with Brunei and Malaysia), Sulawesi , and New Guinea (shared with Papua New Guinea). Indonesia shares land borders with Malaysia on Borneo and Sebatik , Papua New Guinea on the island of New Guinea, East Timor on the island of Timor , and maritime borders with Singapore, Malaysia, Vietnam,

14136-441: The absorption of sunlight, it also increases melting and sea-level rise. Limiting new black carbon deposits in the Arctic could reduce global warming by 0.2 °C by 2050. The effect of decreasing sulfur content of fuel oil for ships since 2020 is estimated to cause an additional 0.05 °C increase in global mean temperature by 2050. As the Sun is the Earth's primary energy source, changes in incoming sunlight directly affect

14288-399: The archipelago and made much of the Northern Hemisphere without summer in 1816 . The latter produced the loudest sound in recorded history and caused 36,000 deaths due to the eruption itself and the resulting tsunamis, with significant additional effects around the world years after the event. Recent catastrophic disasters due to seismic activity include the 2004 Indian Ocean earthquake and

14440-560: The archipelago around 2,000 BCE and confined the native Melanesians to the far eastern regions as they spread east. Ideal agricultural conditions and the mastering of wet-field rice cultivation as early as the eighth century BCE allowed villages, towns, and small kingdoms to flourish by the first century CE. The archipelago's strategic sea-lane position fostered inter-island and international trade, including with Indian kingdoms and Chinese dynasties, from several centuries BCE. Trade has since fundamentally shaped Indonesian history. From

14592-562: The archipelago was tenuous. Dutch forces were engaged continuously in quelling rebellions on and off Java. The influence of local leaders such as Prince Diponegoro in central Java, Imam Bonjol in central Sumatra, Pattimura in Maluku , and the Aceh War weakened the Dutch and tied up the colonial military forces. Only in the early 20th century did Dutch dominance extend to what was to become Indonesia's current boundaries. During World War II,

14744-411: The atmosphere , for instance by increasing forest cover and farming with methods that capture carbon in soil . Before the 1980s it was unclear whether the warming effect of increased greenhouse gases was stronger than the cooling effect of airborne particulates in air pollution . Scientists used the term inadvertent climate modification to refer to human impacts on the climate at this time. In

14896-452: The atmosphere. volcanic CO 2 emissions are more persistent, but they are equivalent to less than 1% of current human-caused CO 2 emissions. Volcanic activity still represents the single largest natural impact (forcing) on temperature in the industrial era. Yet, like the other natural forcings, it has had negligible impacts on global temperature trends since the Industrial Revolution. The climate system's response to an initial forcing

15048-473: The basis of all TNI branches' structure, aimed at maintaining domestic stability and deterring foreign threats. The military has possessed a strong political influence since its founding, which peaked during the New Order . Political reforms in 1998 included the removal of the TNI's formal representation from the legislature. Nevertheless, its political influence remains, albeit at a reduced level. Since independence,

15200-573: The beginning of the Indonesian National Revolution , the Dutch recognised Indonesian independence in the face of international pressure in December 1949, following the Dutch–Indonesian Round Table Conference . Despite political, social, and sectarian divisions, Indonesians found unity in their fight for independence. As president, Sukarno moved Indonesia from democracy towards authoritarianism and maintained power by balancing

15352-454: The biggest threats to global health in the 21st century. Scientists have warned about the irreversible harms it poses. Extreme weather events affect public health, and food and water security . Temperature extremes lead to increased illness and death. Climate change increases the intensity and frequency of extreme weather events. It can affect transmission of infectious diseases , such as dengue fever and malaria . According to

15504-540: The carbon cycle, such as the fertilizing effect of CO 2 on plant growth. Feedbacks are expected to trend in a positive direction as greenhouse gas emissions continue, raising climate sensitivity. These feedback processes alter the pace of global warming. For instance, warmer air can hold more moisture in the form of water vapour , which is itself a potent greenhouse gas. Warmer air can also make clouds higher and thinner, and therefore more insulating, increasing climate warming. The reduction of snow cover and sea ice in

15656-543: The climate cycled through ice ages . One of the hotter periods was the Last Interglacial , around 125,000 years ago, where temperatures were between 0.5 °C and 1.5 °C warmer than before the start of global warming. This period saw sea levels 5 to 10 metres higher than today. The most recent glacial maximum 20,000 years ago was some 5–7 °C colder. This period has sea levels that were over 125 metres (410 ft) lower than today. Temperatures stabilized in

15808-499: The country hardest hit by the 1997 Asian financial crisis . It brought out popular discontent with the New Order's corruption and suppression of political opposition and ultimately ended Suharto's presidency. In 1999, East Timor seceded from Indonesia, following its 1975 invasion by Indonesia and a 25-year occupation marked by international condemnation of human rights abuses . Since 1998, democratic processes have been strengthened by enhancing regional autonomy and instituting

15960-456: The country has struggled to maintain unity against local insurgencies and separatist movements. Some, notably in Aceh and Papua , have led to an armed conflict and subsequent allegations of human rights abuses and brutality from all sides. The former was resolved peacefully in 2005, while the latter has continued amid a significant, albeit imperfect, implementation of regional autonomy laws. Reports from Amnesty , Human Rights Watch , and

16112-493: The country's first direct presidential election in 2004 . Political, economic and social instability, corruption, and instances of terrorism remained problems in the 2000s; however, the economy has performed strongly since 2007. Although relations among the diverse population are mostly harmonious, acute sectarian discontent and violence remain problematic in some areas. A political settlement to an armed separatist conflict in Aceh

16264-415: The country's total maritime area, and has set a target to increase this to 30% by 2045. However, a 2023 study suggested this target is not on track and that existing marine reserves are poorly managed. Around 390 marine areas are managed in some way by government bodies, communities, and other sectors, with potential for these to be considered other effective area-based conservation measures (OECMs). There

16416-668: The current interglacial period beginning 11,700 years ago . This period also saw the start of agriculture. Historical patterns of warming and cooling, like the Medieval Warm Period and the Little Ice Age , did not occur at the same time across different regions. Temperatures may have reached as high as those of the late 20th century in a limited set of regions. Climate information for that period comes from climate proxies , such as trees and ice cores . Around 1850 thermometer records began to provide global coverage. Between

16568-403: The degree of warming future emissions will cause when accounting for the strength of climate feedbacks . Models also predict the circulation of the oceans, the annual cycle of the seasons, and the flows of carbon between the land surface and the atmosphere. The physical realism of models is tested by examining their ability to simulate current or past climates. Past models have underestimated

16720-427: The destroyed trees release CO 2 , and are not replaced by new trees, removing that carbon sink . Between 2001 and 2018, 27% of deforestation was from permanent clearing to enable agricultural expansion for crops and livestock. Another 24% has been lost to temporary clearing under the shifting cultivation agricultural systems. 26% was due to logging for wood and derived products, and wildfires have accounted for

16872-432: The destruction of peatlands, large-scale illegal deforestation (causing extensive haze across parts of Southeast Asia ), over-exploitation of marine resources, air pollution, garbage management, and reliable water and wastewater services . These issues contribute to Indonesia's low ranking (number 116 out of 180 countries) in the 2020 Environmental Performance Index . The report also indicates that Indonesia's performance

17024-401: The distribution of heat and precipitation around the globe. The World Meteorological Organization estimates there is an 80% chance that global temperatures will exceed 1.5 °C warming for at least one year between 2024 and 2028. The chance of the 5-year average being above 1.5 °C is almost half. The IPCC expects the 20-year average global temperature to exceed +1.5 °C in

17176-444: The dominant direct influence on temperature from land use change. Thus, land use change to date is estimated to have a slight cooling effect. Air pollution, in the form of aerosols, affects the climate on a large scale. Aerosols scatter and absorb solar radiation. From 1961 to 1990, a gradual reduction in the amount of sunlight reaching the Earth's surface was observed. This phenomenon is popularly known as global dimming , and

17328-531: The dominant religion in Java and Sumatra by the end of the 16th century. For the most part, Islam overlaid and mixed with existing cultural and religious influences, which shaped the predominant form of Islam in Indonesia, particularly in Java. The first Europeans arrived in the archipelago in 1512, when Portuguese traders, led by Francisco Serrão , sought to monopolise the sources of nutmeg , cloves , and cubeb pepper in

17480-610: The early 2030s. The IPCC Sixth Assessment Report (2021) included projections that by 2100 global warming is very likely to reach 1.0–1.8 °C under a scenario with very low emissions of greenhouse gases , 2.1–3.5 °C under an intermediate emissions scenario , or 3.3–5.7 °C under a very high emissions scenario . The warming will continue past 2100 in the intermediate and high emission scenarios, with future projections of global surface temperatures by year 2300 being similar to millions of years ago. The remaining carbon budget for staying beneath certain temperature increases

17632-430: The entire atmosphere—is ruled out because only the lower atmosphere has warmed. Atmospheric aerosols produce a smaller, cooling effect. Other drivers, such as changes in albedo , are less impactful. Greenhouse gases are transparent to sunlight , and thus allow it to pass through the atmosphere to heat the Earth's surface. The Earth radiates it as heat , and greenhouse gases absorb a portion of it. This absorption slows

17784-636: The executive branch. Reforms since 1998 have markedly increased its role in national governance, while the DPD is a new chamber for matters of regional management. Most civil disputes appear before the State Court ( Pengadilan Negeri ); appeals are heard before the High Court ( Pengadilan Tinggi ). The Supreme Court of Indonesia ( Mahkamah Agung ) is the highest level of the judicial branch and hears final cessation appeals and conducts case reviews. Other courts include

17936-691: The fall of the New Order , no political party has won an overall majority of seats. The Indonesian Democratic Party of Struggle (PDI-P) secured the most votes in the 2024 general election , becoming their third consecutive wins since 2014. Other notable parties include the Party of the Functional Groups ( Golkar ), the Great Indonesia Movement Party ( Gerindra ), the Democratic Party , and

18088-438: The frequency of drought and food shortages (with an impact on precipitation and the patterns of wet and dry seasons, and thus Indonesia's agriculture system ) as well as numerous diseases and wildfires. Rising sea levels would also threaten most of Indonesia's population, who live in low-lying coastal areas. Impoverished communities would likely be affected the most by climate change. Tectonically , most of Indonesia's area

18240-592: The global climate system has grown with only brief pauses since at least 1970, and over 90% of this extra energy has been stored in the ocean . The rest has heated the atmosphere , melted ice, and warmed the continents. The Northern Hemisphere and the North Pole have warmed much faster than the South Pole and Southern Hemisphere . The Northern Hemisphere not only has much more land, but also more seasonal snow cover and sea ice . As these surfaces flip from reflecting

18392-560: The inhabitants of the "Indian Archipelago or Malay Archipelago ". In the same publication, one of his students, James Richardson Logan , used Indonesia as a synonym for Indian Archipelago . Dutch academics writing in East Indies publications were reluctant to use Indonesia . They preferred Malay Archipelago ( Dutch : Maleische Archipel ); the Netherlands East Indies ( Nederlandsch Oost Indië ), popularly Indië ;

18544-495: The interiors of Kalimantan and Papua, and less in areas closer to Australia, such as Nusa Tenggara, which tends to be relatively dry. The almost uniformly warm waters that constitute 81% of Indonesia's area ensure that land temperatures remain relatively constant. Humidity is quite high, at between 70 and 90%. Winds are moderate and generally predictable, with monsoons usually blowing in from the south and east in May through October and from

18696-419: The island's river settlements. Indonesia lies along the equator, and its climate tends to be relatively even year-round. Indonesia has two seasons—a dry season and a wet season —with no extremes of summer or winter. For most parts of Indonesia, the dry season falls between May and October, while the wet season falls between November and April. Indonesia's climate is almost entirely tropical , dominated by

18848-459: The largest. A shared identity has developed with the motto " Bhinneka Tunggal Ika " ("Unity in Diversity" literally , "many, yet one"), defined by a national language , cultural diversity, religious pluralism within a Muslim-majority population, and a history of colonialism and rebellion against it. A developing country , Indonesia is classified a newly industrialized country , with its economy

19000-572: The last 14 million years. Concentrations of methane are far higher than they were over the last 800,000 years. Global human-caused greenhouse gas emissions in 2019 were equivalent to 59 billion tonnes of CO 2 . Of these emissions, 75% was CO 2 , 18% was methane , 4% was nitrous oxide, and 2% was fluorinated gases . CO 2 emissions primarily come from burning fossil fuels to provide energy for transport , manufacturing, heating , and electricity. Additional CO 2 emissions come from deforestation and industrial processes , which include

19152-436: The last two decades. CO 2 is only removed from the atmosphere for the long term when it is stored in the Earth's crust, which is a process that can take millions of years to complete. Around 30% of Earth's land area is largely unusable for humans ( glaciers , deserts , etc.), 26% is forests , 10% is shrubland and 34% is agricultural land . Deforestation is the main land use change contributor to global warming, as

19304-441: The last: internal climate variability processes can make any year 0.2 °C warmer or colder than the average. From 1998 to 2013, negative phases of two such processes, Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO) caused a short slower period of warming called the " global warming hiatus ". After the "hiatus", the opposite occurred, with years like 2023 exhibiting temperatures well above even

19456-608: The lower atmosphere. Carbon dioxide , the primary greenhouse gas driving global warming, has grown by about 50% and is at levels not seen for millions of years. Climate change has an increasingly large impact on the environment . Deserts are expanding , while heat waves and wildfires are becoming more common. Amplified warming in the Arctic has contributed to thawing permafrost , retreat of glaciers and sea ice decline . Higher temperatures are also causing more intense storms , droughts, and other weather extremes . Rapid environmental change in mountains , coral reefs , and

19608-413: The more popular term after NASA climate scientist James Hansen used it in his 1988 testimony in the U.S. Senate . Since the 2000s, climate change has increased usage. Various scientists, politicians and media may use the terms climate crisis or climate emergency to talk about climate change, and may use the term global heating instead of global warming . Over the last few million years

19760-625: The national level is the People's Consultative Assembly ( Majelis Permusyawaratan Rakyat , MPR). Its main functions are supporting and amending the constitution, inaugurating and impeaching the president, and formalising broad outlines of state policy. The MPR comprises two houses; the People's Representative Council ( Dewan Perwakilan Rakyat , DPR), with 575 members, and the Regional Representative Council ( Dewan Perwakilan Daerah , DPD), with 136. The DPR passes legislation and monitors

19912-550: The north and west in November through April. Typhoons and large-scale storms pose little hazard to mariners; significant dangers come from swift currents in channels, such as the Lombok and Sape straits. Several studies consider Indonesia to be at severe risk from the projected effects of climate change . These include unreduced emissions resulting in an average temperature rise of around 1 °C (2 °F) by mid-century, raising

20064-425: The only ones where the indigenous people have privileges in their local government. Indonesia maintains 132 diplomatic missions abroad, including 95 embassies. The country adheres to what it calls a "free and active" foreign policy, seeking a role in regional affairs in proportion to its size and location but avoiding involvement in conflicts among other countries. Indonesia was a significant battleground during

20216-484: The opposing forces of the military , political Islam, and the increasingly powerful Communist Party of Indonesia (PKI). Tensions between the military and the PKI culminated in an attempted coup in 1965. The army, led by Major General Suharto , countered by instigating a violent anti-communist purge that killed between 500,000 and one million people and incarcerated roughly a million more in concentration camps . The PKI

20368-544: The poverty line, and the official open unemployment rate was 5.28%. During the first year of the global COVID-19 pandemic , the economy suffered its first recession since the 1997 crisis but recovered in the following year. Indonesia has abundant natural resources. Its primary industries are fishing, petroleum, timber, paper products, cotton cloth, tourism, petroleum mining, natural gas, bauxite, coal, and tin. Its main agricultural products are rice, coconuts, soybeans, bananas, coffee, tea, palm, rubber, and sugar cane. Indonesia

20520-619: The rate at which heat escapes into space, trapping heat near the Earth's surface and warming it over time. While water vapour (≈50%) and clouds (≈25%) are the biggest contributors to the greenhouse effect, they primarily change as a function of temperature and are therefore mostly considered to be feedbacks that change climate sensitivity . On the other hand, concentrations of gases such as CO 2 (≈20%), tropospheric ozone , CFCs and nitrous oxide are added or removed independently from temperature, and are therefore considered to be external forcings that change global temperatures. Before

20672-522: The rate of Arctic shrinkage and underestimated the rate of precipitation increase. Sea level rise since 1990 was underestimated in older models, but more recent models agree well with observations. The 2017 United States-published National Climate Assessment notes that "climate models may still be underestimating or missing relevant feedback processes". Additionally, climate models may be unable to adequately predict short-term regional climatic shifts. A subset of climate models add societal factors to

20824-613: The rate of yield growth . Fisheries have been negatively affected in multiple regions. While agricultural productivity has been positively affected in some high latitude areas, mid- and low-latitude areas have been negatively affected. According to the World Economic Forum, an increase in drought in certain regions could cause 3.2 million deaths from malnutrition by 2050 and stunting in children. With 2 °C warming, global livestock headcounts could decline by 7–10% by 2050, as less animal feed will be available. If

20976-405: The recent average. This is why the temperature change is defined in terms of a 20-year average, which reduces the noise of hot and cold years and decadal climate patterns, and detects the long-term signal. A wide range of other observations reinforce the evidence of warming. The upper atmosphere is cooling, because greenhouse gases are trapping heat near the Earth's surface, and so less heat

21128-411: The release of chemical compounds that influence clouds, and by changing wind patterns. In tropic and temperate areas the net effect is to produce significant warming, and forest restoration can make local temperatures cooler. At latitudes closer to the poles, there is a cooling effect as forest is replaced by snow-covered (and more reflective) plains. Globally, these increases in surface albedo have been

21280-476: The remaining 23%. Some forests have not been fully cleared, but were already degraded by these impacts. Restoring these forests also recovers their potential as a carbon sink. Local vegetation cover impacts how much of the sunlight gets reflected back into space ( albedo ), and how much heat is lost by evaporation . For instance, the change from a dark forest to grassland makes the surface lighter, causing it to reflect more sunlight. Deforestation can also modify

21432-583: The sea levels by at least 3.3 m (10 ft 10 in) over approximately 2000 years. Recent warming has driven many terrestrial and freshwater species poleward and towards higher altitudes . For instance, the range of hundreds of North American birds has shifted northward at an average rate of 1.5 km/year over the past 55 years. Higher atmospheric CO 2 levels and an extended growing season have resulted in global greening. However, heatwaves and drought have reduced ecosystem productivity in some regions. The future balance of these opposing effects

21584-450: The seventh century CE, the Srivijaya naval kingdom flourished due to trade and the influences of Hinduism and Buddhism . Between the eighth and tenth centuries CE, the agricultural Buddhist Sailendra and Hindu Mataram dynasties thrived and declined in inland Java, leaving grand religious monuments such as Sailendra's Borobudur and Mataram's Prambanan . The Hindu Majapahit kingdom

21736-423: The seventh century, when Sumatra's Srivijaya and later Java's Majapahit kingdoms engaged in commerce with entities from mainland China and the Indian subcontinent . Over the centuries, local rulers assimilated foreign influences, leading to the flourishing of Hindu and Buddhist kingdoms. Sunni traders and Sufi scholars later brought Islam , and European powers fought one another to monopolise trade in

21888-438: The subtropical highland climate (Köppen Cwb ) is more pronounced during dry season. Some regions, such as Kalimantan and Sumatra , experience only slight differences in rainfall and temperature between the seasons, whereas others, such as Nusa Tenggara, experience far more pronounced differences with droughts in the dry season and floods in the wet season. Rainfall varies across regions, with more in western Sumatra, Java, and

22040-633: The village ( desa ) is divided into smaller units called dusun or dukuh (hamlets), which are the same as RW. Following the implementation of regional autonomy measures in 2001, regencies and cities have become chief administrative units responsible for providing most government services. The village administration level is the most influential on a citizen's daily life and handles village or neighbourhood matters through an elected village head ( lurah or kepala desa ). Nine provinces—Aceh, Jakarta, Yogyakarta, Papua , Central Papua , Highland Papua , South Papua , Southwest Papua , and West Papua —are granted

22192-512: The world's 16th-largest by nominal GDP and the 7th-largest by PPP . It is the world's third-largest democracy, a regional power , and is considered a middle power in global affairs. The country is a member of several multilateral organisations, including the United Nations, World Trade Organization , G20 , and a founding member of the Non-Aligned Movement , Association of Southeast Asian Nations , East Asia Summit , D-8 , APEC , and

22344-438: The world. Impacts can be observed on all continents and ocean regions, with low-latitude, less developed areas facing the greatest risk. Continued warming has potentially "severe, pervasive and irreversible impacts" for people and ecosystems. The risks are unevenly distributed, but are generally greater for disadvantaged people in developing and developed countries. The World Health Organization calls climate change one of

22496-656: Was a founding member of the Non-Aligned Movement (NAM) and the Organisation of Islamic Cooperation (OIC). Indonesia is a signatory to the ASEAN Free Trade Area agreement, the Cairns Group , the World Trade Organization (WTO), and a former member of OPEC . Indonesia has been a humanitarian and development aid recipient since 1967, and recently, the country established its first overseas aid programme in late 2019. Indonesia's Armed Forces (TNI) include

22648-575: Was achieved in 2005. Indonesia is the southernmost country in Asia. The country lies between latitudes 11°S and 6°N and longitudes 95°E and 141°E . A transcontinental country spanning Southeast Asia and Oceania, it is the world's largest archipelagic state , extending 5,120 kilometres (3,181 mi) from east to west and 1,760 kilometres (1,094 mi) from north to south. The country's Coordinating Ministry for Maritime and Investments Affairs says Indonesia has 17,504 islands (with 16,056 registered at

22800-450: Was blamed for the coup and effectively destroyed. Suharto capitalised on Sukarno's weakened position, and following a drawn-out power play with Sukarno , Suharto was appointed president in March 1968. His US-backed "New Order" administration encouraged foreign direct investment , which was a crucial factor in the subsequent three decades of substantial economic growth. Indonesia was

22952-401: Was founded in eastern Java in the late 13th century, and under Gajah Mada , its influence stretched over much of present-day Indonesia. This period is often referred to as the "Golden Age" in Indonesian history. The earliest evidence of Islamized populations in the archipelago dates to the 13th century in northern Sumatra . Other parts of the archipelago gradually adopted Islam, and it was

23104-524: Was sending more energy to Earth, but instead, it has been cooling. This is consistent with greenhouse gases preventing heat from leaving the Earth's atmosphere. Explosive volcanic eruptions can release gases, dust and ash that partially block sunlight and reduce temperatures, or they can send water vapour into the atmosphere, which adds to greenhouse gases and increases temperatures. These impacts on temperature only last for several years, because both water vapour and volcanic material have low persistence in

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