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Mother Earth News

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Mother Earth News is a bi-monthly American magazine that has a circulation of 500,520 as of 2011. It is published in Topeka , Kansas .

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124-404: Since its founding, Mother Earth News has promoted renewable energy , recycling , family farms, good agricultural practices , better eating habits, medical self-care, more meaningful education and affordable housing . The magazine approaches environmental problems from a down-to-earth, practical, simple living , how-to standpoint. Founders John and Jane Shuttleworth started the magazine on

248-496: A carburetor with adjustable jetting, allowing use of gasoline or ethanol, or a combination of both. Other car manufactures also provided engines for ethanol fuel use. In the United States, alcohol fuel was produced in corn-alcohol stills until Prohibition criminalized the production of alcohol in 1919. The use of alcohol as a fuel for internal combustion engines , either alone or in combination with other fuels, lapsed until

372-630: A "shoestring" budget of $ 1500, published from home in 1970. The first issue was published in January of that year. (John Shuttleworth died on March 29, 2009, at his home in Evergreen, Colorado , at the age of 71.) The magazine was originally published in Madison, Ohio , and moved to Hendersonville, North Carolina , later. The headquarters is in Topeka, Kansas. It had a scrappy, no-frills style and appearance throughout

496-401: A combination of factors, such as environmental and health concerns including climate change and air pollution , high oil-prices and the potential for peak oil , development of cleaner alternative fuels and advanced power systems for vehicles has become a high priority for many governments and vehicle manufacturers around the world. Vehicle engines powered by gasoline/petrol first emerged in

620-463: A faster rate than they are consumed". Solar power , wind power , hydroelectricity , geothermal energy, and biomass are widely agreed to be the main types of renewable energy. Renewable energy often displaces conventional fuels in four areas: electricity generation , hot water / space heating , transportation , and rural (off-grid) energy services. Although almost all forms of renewable energy cause much fewer carbon emissions than fossil fuels,

744-551: A gas which has the same quality as compressed natural gas. High-pressure compressed natural gas (CNG), mainly composed of methane, that is used to fuel normal combustion engines instead of gasoline. Combustion of methane produces the least amount of CO 2 of all fossil fuels. Gasoline cars can be retrofitted to CNG and become bifuel Natural gas vehicles (NGVs) as the gasoline tank is kept. The driver can switch between CNG and gasoline during operation. Natural gas vehicles (NGVs) are popular in regions or countries where natural gas

868-437: A given time. Solar energy can only be captured during the day, and ideally in cloudless conditions. Wind power generation can vary significantly not only day-to-day, but even month-to-month. This poses a challenge when transitioning away from fossil fuels: energy demand will often be higher or lower than what renewables can provide. Both scenarios can cause electricity grids to become overloaded, leading to power outages . In

992-470: A higher octane rating which is beneficial to high compression ratio engines. For this reason, for pure or high ethanol blends to be attractive for users, its price must be lower than gasoline to offset the lower fuel economy. As a rule of thumb , Brazilian consumers are frequently advised by the local media to use more alcohol than gasoline in their mix only when ethanol prices are 30% lower or more than gasoline, as ethanol price fluctuates heavily depending on

1116-948: A large portion of the total, such as Kenya (43%) and Indonesia (5%). Technical advances may eventually make geothermal power more widely available. For example, enhanced geothermal systems involve drilling around 10 kilometres (6.2 mi) into the Earth, breaking apart hot rocks and extracting the heat using water. In theory, this type of geothermal energy extraction could be done anywhere on Earth. There are also other renewable energy technologies that are still under development, including enhanced geothermal systems , concentrated solar power , cellulosic ethanol , and marine energy . These technologies are not yet widely demonstrated or have limited commercialization. Some may have potential comparable to other renewable energy technologies, but still depend on further breakthroughs from research, development and engineering. Enhanced geothermal systems (EGS) are

1240-535: A long time, may become hydrogenated and have increased acidity. This can cause the thickening of fuel, gumming in the engine and acid damage of the fuel system. Biodiesel does not have this problem, because it is chemically processed to be PH neutral and lower viscosity. Modern low emission diesels (most often Euro -3 and -4 compliant), typical of the current production in the European industry, would require extensive modification of injector system, pumps and seals etc. due to

1364-638: A more energy-dense biofuel like ethanol. Wood is the most significant biomass energy source as of 2012 and is usually sourced from a trees cleared for silvicultural reasons or fire prevention . Municipal wood waste – for instance, construction materials or sawdust – is also often burned for energy. The biggest per-capita producers of wood-based bioenergy are heavily forested countries like Finland, Sweden, Estonia, Austria, and Denmark. Bioenergy can be environmentally destructive if old-growth forests are cleared to make way for crop production. In particular, demand for palm oil to produce biodiesel has contributed to

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1488-506: A new type of geothermal power which does not require natural hot water reservoirs or steam to generate power. Most of the underground heat within drilling reach is trapped in solid rocks, not in water. EGS technologies use hydraulic fracturing to break apart these rocks and release the heat they contain, which is then harvested by pumping water into the ground. The process is sometimes known as "hot dry rock" (HDR). Unlike conventional geothermal energy extraction, EGS may be feasible anywhere in

1612-409: A range of construction strategies and technologies that aim to optimize the distribution of solar heat in a building. Examples include solar chimneys , orienting a building to the sun, using construction materials that can store heat , and designing spaces that naturally circulate air . From 2020 to 2022, solar technology investments almost doubled from USD 162 billion to USD 308 billion, driven by

1736-602: A regular basis, making them a less-than-ideal solution. NiMH batteries are a better choice , but are considerably more expensive than lead-acid. Lithium-ion battery powered vehicles such as the Venturi Fetish and the Tesla Roadster have recently demonstrated excellent performance and range, and nevertheless is used in most mass production models launched since December 2010. Expanding on traditional lithium-ion batteries predominately used in today's battery electric vehicles,

1860-473: A result, the magazine thrived throughout the 1970s. There were articles on home building, farming , gardening , and entrepreneurism, all with a DIY approach. The subject matter of the articles ranged widely into such subjects as geodesic domes , hunting , food storage , and even a regular column on amateur radio . Alternative energy was a frequent topic covered in the magazine, with articles on how to switch to solar power and wind power , and how to make

1984-445: A still and run your car on ethanol . A series of "Plowboy Interviews" (a jokey nod to " Playboy Interviews ") was also a regular feature, which included interviews of environmental leaders and others. With its left-of-center perspective, The Mother Earth News attracted a wide readership, not only of back to the landers but also others ranging from hippies , to survivalists , to suburban dwellers who dreamed of someday moving to

2108-409: A sugar solution such as overripe fruit, most organisms have evolved some tolerance to ethanol , whereas methanol is toxic. Other experiments involve butanol , which can also be produced by fermentation of plants. Support for ethanol comes from the fact that it is a biomass fuel, which addresses climate change and greenhouse gas emissions , though these benefits are now highly debated, including

2232-458: A type of hybrid vehicle. Batteries used in electric vehicles include "flooded" lead-acid, absorbed glass mat, NiCd, nickel metal hydride, Li-ion, Li-poly and zinc-air batteries. Attempts at building viable, modern battery -powered electric vehicles began in the 1950s with the introduction of the first modern ( transistor controlled) electric car – the Henney Kilowatt , even though the concept

2356-702: A variety of environmental conditions and perform more efficiently allowing a greater proportion of photon energy to end up in the storage compounds, i.e., carbohydrates (rather than building and sustaining living cells). However, prominent research faces hurdles, Sun Catalytix a MIT spin-off stopped scaling up their prototype fuel-cell in 2012 because it offers few savings over other ways to make hydrogen from sunlight. Most new renewables are solar, followed by wind then hydro then bioenergy. Investment in renewables, especially solar, tends to be more effective in creating jobs than coal, gas or oil. Worldwide, renewables employ about 12 million people as of 2020, with solar PV being

2480-417: A warmer climate. Ethanol has close to 34% less energy per volume than gasoline, consequently fuel economy ratings with ethanol blends are significantly lower than with pure gasoline, but this lower energy content does not translate directly into a 34% reduction in mileage, because there are many other variables that affect the performance of a particular fuel in a particular engine, and also because ethanol has

2604-472: Is energy from renewable natural resources that are replenished on a human timescale . The most widely used renewable energy types are solar energy , wind power , and hydropower . Bioenergy and geothermal power are also significant in some countries. Some also consider nuclear power a renewable power source , although this is controversial. Renewable energy installations can be large or small and are suited for both urban and rural areas. Renewable energy

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2728-452: Is thermal energy (heat) extracted from the Earth's crust . It originates from several different sources , of which the most significant is slow radioactive decay of minerals contained in the Earth's interior , as well as some leftover heat from the formation of the Earth . Some of the heat is generated near the Earth's surface in the crust, but some also flows from deep within the Earth from

2852-471: Is a more economical means of long-term renewable energy storage, in terms of capital expenditures compared to pumped hydroelectric or batteries. Solar power produced around 1.3 terrawatt-hours (TWh) worldwide in 2022, representing 4.6% of the world's electricity. Almost all of this growth has happened since 2010. Solar energy can be harnessed anywhere that receives sunlight; however, the amount of solar energy that can be harnessed for electricity generation

2976-400: Is a system using two type of fuel which are diesel and compressed natural gas (CNG) at the same time. It is because of CNG need a source of ignition for combustion in diesel engine. A hybrid vehicle uses multiple propulsion systems to provide motive power. The most common type of hybrid vehicle is the gasoline-electric hybrid vehicles , which use gasoline (petrol) and electric batteries for

3100-537: Is a technology for generating electricity by mixing fresh water and salty sea water in large power cells. Most marine energy harvesting technologies are still at low technology readiness levels and not used at large scales. Tidal energy is generally considered the most mature, but has not seen wide deployment. The world's largest tidal power station is on Sihwa Lake , South Korea, which produces around 550 gigawatt-hours of electricity per year. Earth emits roughly 10 W of infrared thermal radiation that flows toward

3224-419: Is about 800 times denser than air , even a slow flowing stream of water, or moderate sea swell , can yield considerable amounts of energy. Water can generate electricity with a conversion efficiency of about 90%, which is the highest rate in renewable energy. There are many forms of water energy: Much hydropower is flexible, thus complementing wind and solar. In 2021, the world renewable hydropower capacity

3348-533: Is abundant. Widespread use began in the Po River Valley of Italy , and later became very popular in New Zealand by the eighties, though its use has declined. As of 2017, there were 24.5 million natural gas vehicles worldwide, led by China (5.35 million) followed by Iran (4.0 million), India (3.05 million), Pakistan (3 million), Argentina (2.3 million), and Brazil (1.78 million). As of 2010,

3472-584: Is also possible to transmit energy by microwaves or by lasers to the vehicle, but this may be inefficient and dangerous for the power required. Beside this, in the case of lasers one requires a guidance system to track the vehicle to be powered, as laser beams have a small diameter. Comparative assessments of conventional fossil and alternative fuel vehicles usually encompass more than in-use environmental impacts and running costs. They factor in issues like resource extractive impacts (e.g. for battery manufacture or fossil fuel extraction), ‘well-to-wheel’ efficiency, and

3596-461: Is an automobile which uses hydrogen as its primary source of power for locomotion. These cars generally use the hydrogen in one of two methods: combustion or fuel-cell conversion. In combustion, the hydrogen is "burned" in engines in fundamentally the same method as traditional gasoline cars. The common internal combustion engine , usually fueled with gasoline (petrol) or diesel liquids, can be converted to run on gaseous hydrogen. This emits water at

3720-607: Is an emerging science that is paving the way to utilize a carbon fiber structure (a vehicle body or chassis in this case) as a structural battery . Experiments being conducted at the Chalmers University of Technology in Sweden are showing that when coupled with Lithium-ion insertion mechanisms, an enhanced carbon fiber structure can have electromechanical properties. This means that the carbon fiber structure itself can act as its own battery/power source for propulsion. This would negate

3844-429: Is commercially available in most oilseed-producing states in the United States. As of 2005, it is somewhat more expensive than fossil diesel, though it is still commonly produced in relatively small quantities (in comparison to petroleum products and ethanol). Many farmers who raise oilseeds use a biodiesel blend in tractors and equipment as a matter of policy, to foster production of biodiesel and raise public awareness. It

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3968-520: Is common in Iceland, or to generate electricity. At smaller scales, geothermal power can be generated with geothermal heat pumps , which can extract heat from ground temperatures of under 30 °C (86 °F), allowing them to be used at relatively shallow depths of a few meters. Electricity generation requires large plants and ground temperatures of at least 150 °C (302 °F). In some countries, electricity produced from geothermal energy accounts for

4092-401: Is enough fuel for breeder reactors to satisfy the world's energy needs for 5 billion years at 1983's total energy consumption rate, thus making nuclear energy effectively a renewable energy. In addition to seawater the average crustal granite rocks contain significant quantities of uranium and thorium with which breeder reactors can supply abundant energy for the remaining lifespan of the sun on

4216-538: Is in the chemical energy of batteries. BEVs are the most common form of what is defined by the California Air Resources Board (CARB) as zero emission vehicle (ZEV) because they produce no tailpipe emissions at the point of operation. The electrical energy carried on board a BEV to power the motors is obtained from a variety of battery chemistries arranged into battery packs. For additional range genset trailers or pusher trailers are sometimes used, forming

4340-518: Is influenced by weather conditions , geographic location and time of day. There are two mainstream ways of harnessing solar energy: solar thermal , which converts solar energy into heat; and photovoltaics (PV), which converts it into electricity. PV is far more widespread, accounting for around two thirds of the global solar energy capacity as of 2022. It is also growing at a much faster rate, with 170 GW newly installed capacity in 2021, compared to 25 GW of solar thermal. Passive solar refers to

4464-460: Is more valuable than VRE countries with large hydroelectric developments such as Canada and Norway are spending billions to expand their grids to trade with neighboring countries having limited hydro. Biomass is biological material derived from living, or recently living organisms. Most commonly, it refers to plants or plant-derived materials. As an energy source, biomass can either be used directly via combustion to produce heat, or converted to

4588-476: Is negligible. Because biodiesel contains more oxygen than diesel or vegetable oil fuel , it produces the lowest emissions from diesel engines, and is lower in most emissions than gasoline engines. Biodiesel has a higher lubricity than mineral diesel and is an additive in European pump diesel for lubricity and emissions reduction. Some Diesel -powered cars can run with minor modifications on 100% pure vegetable oils . Vegetable oils tend to thicken (or solidify if it

4712-596: Is not possible to use or store excess electricity. Electrical energy storage is a collection of methods used to store electrical energy. Electrical energy is stored during times when production (especially from intermittent sources such as wind power , tidal power , solar power ) exceeds consumption, and returned to the grid when production falls below consumption. Pumped-storage hydroelectricity accounts for more than 85% of all grid power storage . Batteries are increasingly being deployed for storage and grid ancillary services and for domestic storage. Green hydrogen

4836-520: Is often associated with unsustainable deforestation . As part of the global effort to limit climate change , most countries have committed to net zero greenhouse gas emissions . In practice, this means phasing out fossil fuels and replacing them with low-emissions energy sources. This much needed process, coined as "low-carbon substitutions" in contrast to other transition processes including energy additions, needs to be accelerated multiple times in order to successfully mitigating climate change. At

4960-501: Is often deployed together with further electrification . This has several benefits: electricity can move heat and vehicles efficiently and is clean at the point of consumption. Variable renewable energy sources are those that have a fluctuating nature, such as wind power and solar power. In contrast, controllable renewable energy sources include dammed hydroelectricity , bioenergy , or geothermal power . Renewable energy systems have rapidly become more efficient and cheaper over

5084-424: Is predominantly generated from coal.   The air engine is an emission-free piston engine that uses compressed air as a source of energy. The first compressed air car was invented by a French engineer named Guy Nègre . The expansion of compressed air may be used to drive the pistons in a modified piston engine. Efficiency of operation is gained through the use of environmental heat at normal temperature to warm

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5208-420: Is sometimes easier to find biodiesel in rural areas than in cities. Biodiesel has lower energy density than fossil diesel fuel, so biodiesel vehicles are not quite able to keep up with the fuel economy of a fossil fuelled diesel vehicle, if the diesel injection system is not reset for the new fuel. If the injection timing is changed to take account of the higher cetane value of biodiesel, the difference in economy

5332-521: Is technologically possible to use vegetable oil as a fuel in high efficiency / low emission diesel engines. Greasestock is an event held yearly in Yorktown Heights, New York , and is one of the largest showcases of vehicles using waste oil as a biofuel in the United States. Compressed biogas may be used for internal combustion engines after purification of the raw gas. The removal of H 2 O, H 2 S and particles can be seen as standard producing

5456-477: Is that the heated water can be stored until it is needed, eliminating the need for a separate energy storage system. Solar thermal power can also be converted to electricity by using the steam generated from the heated water to drive a turbine connected to a generator. However, because generating electricity this way is much more expensive than photovoltaic power plants, there are very few in use today. Humans have harnessed wind energy since at least 3500 BC. Until

5580-528: Is that the vehicle can be operated without breaks for refueling or charging. Disadvantages include: a large infrastructure of electric wires; difficulty in driving as one has to prevent a dewirement of the vehicle; vehicles cannot overtake each other; a danger of electrocution; and an aesthetic problem. Wireless transmission (see Wireless power transfer ) is possible, in principle; but the infrastructure (especially wiring) necessary for inductive or capacitive coupling would be extensive and expensive. In principle it

5704-867: Is the Nissan Leaf , released in December 2010, with global sales of more than 250,000 units through December 2016. The Tesla Model S , released in June 2012, ranks second with global sales of over 158,000 cars delivered as of December 2016 . The Renault Kangoo Z.E. utility van is the leader of the light-duty all-electric segment with global sales of 25,205 units through December 2016. Plug-in hybrid electric vehicles (PHEVs) use batteries to power an electric motor, as well as another fuel, such as gasoline or diesel, to power an internal combustion engine or other propulsion source. PHEVs can charge their batteries through charging equipment and regenerative braking . Using electricity from

5828-662: Is to slow and eventually stop climate change , which is widely agreed to be caused mostly by greenhouse gas emissions . In general, renewable energy sources cause much lower emissions than fossil fuels. The International Energy Agency estimates that to achieve net zero emissions by 2050, 90% of global electricity generation will need to be produced from renewable sources. Renewables also cause much less air pollution than fossil fuels, improving public health, and are less noisy . The deployment of renewable energy still faces obstacles, especially fossil fuel subsidies , lobbying by incumbent power providers, and local opposition to

5952-455: Is waste cooking oil), in cold weather conditions so vehicle modifications (a two tank system with diesel start/stop tank), are essential in order to heat the fuel prior to use under most circumstances. Heating to the temperature of engine coolant reduces fuel viscosity, to the range cited by injection system manufacturers, for systems prior to 'common rail' or 'unit injection ( VW PD)' systems. Waste vegetable oil, especially if it has been used for

6076-463: The 2023 United Nations Climate Change Conference , around three-quarters of the world's countries set a goal of tripling renewable energy capacity by 2030. The European Union aims to generate 40% of its electricity from renewables by the same year. Renewable energy is more evenly distributed around the world than fossil fuels, which are concentrated in a limited number of countries. It also brings health benefits by reducing air pollution caused by

6200-1735: The F3DM to the Chinese fleet market in December 2008 and began sales to the general public in Shenzhen in March 2010. General Motors began deliveries of the Chevrolet Volt in the U.S. in December 2010. Deliveries to retail customers of the Fisker Karma began in the U.S. in November 2011. During 2012, the Toyota Prius Plug-in Hybrid , Ford C-Max Energi , and Volvo V60 Plug-in Hybrid were released. The following models were launched during 2013 and 2015: Honda Accord Plug-in Hybrid , Mitsubishi Outlander P-HEV , Ford Fusion Energi , McLaren P1 (limited edition), Porsche Panamera S E-Hybrid , BYD Qin , Cadillac ELR , BMW i3 REx , BMW i8 , Porsche 918 Spyder (limited production), Volkswagen XL1 (limited production), Audi A3 Sportback e-tron , Volkswagen Golf GTE , Mercedes-Benz S 500 e , Porsche Cayenne S E-Hybrid , Mercedes-Benz C 350 e , BYD Tang , Volkswagen Passat GTE , Volvo XC90 T8 , BMW X5 xDrive40e , Hyundai Sonata PHEV , and Volvo S60L PHEV . As of December 2015 , about 500,000 highway-capable plug-in hybrid electric cars had been sold worldwide since December 2008, out of total cumulative global sales of 1.2 million light-duty plug-in electric vehicles . As of December 2016 ,

6324-523: The Hyundai NEXO , Toytota Mirai , and previously the Honda FCX Clarity . One primary area of research is hydrogen storage , to try to increase the range of hydrogen vehicles while reducing the weight, energy consumption , and complexity of the storage systems. Two primary methods of storage are metal hydrides and compression. Some believe that hydrogen cars will never be economically viable and that

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6448-488: The NASA Office of Science and Technology Policy examined the concept and concluded that with current and near-future technologies it would be economically uncompetitive. Collection of static electricity charges from water droplets on metal surfaces is an experimental technology that would be especially useful in low-income countries with relative air humidity over 60%. Breeder reactors could, in principle, depending on

6572-577: The Volt/Ampera family of plug-in hybrids , with combined sales of about 134,500 units is the top selling plug-in hybrid in the world. Ranking next are the Mitsubishi Outlander P-HEV with about 119,500, and the Toyota Prius Plug-in Hybrid with almost 78,000. The first commercial vehicle that used ethanol as a fuel was the Ford Model T , produced from 1908 through 1927. It was fitted with

6696-443: The carbon intensity of electricity in different geographies. In general, the lifecycle greenhouse gas emissions of battery-electric vehicles are lower than emissions from hydrogen, PHEV, hybrid, compressed natural gas, gasoline, and diesel vehicles. BEVs have lower emissions than internal combustion engine vehicles even in places where electricity generation is relatively carbon-intensive , for example China where electricity

6820-505: The mantle and core . Geothermal energy extraction is viable mostly in countries located on tectonic plate edges, where the Earth's hot mantle is more exposed. As of 2023, the United States has by far the most geothermal capacity (2.7 GW, or less than 0.2% of the country's total energy capacity ), followed by Indonesia and the Philippines. Global capacity in 2022 was 15 GW. Geothermal energy can be either used directly to heat homes, as

6944-591: The oil price shocks of the 1970s. Furthermore, additional attention was gained because of its possible environmental and long-term economical advantages over fossil fuel. Both ethanol and methanol have been used as an automotive fuel. While both can be obtained from petroleum or natural gas, ethanol has attracted more attention because it is considered a renewable resource , easily obtained from sugar or starch in crops and other agricultural produce such as grain , sugarcane , sugar beets or even lactose . Since ethanol occurs in nature whenever yeast happens to find

7068-628: The 1860s and 1870s ; they took until the 1930s to completely dominate the original "alternative" engines driven by steam (18th century), by gases (early 19th century), or by electricity ( c. 1830s). Hybrid electric vehicles such as the Toyota Prius are not actually alternative fuel vehicles, but through advanced technologies in the electric battery and motor/generator, they make a more efficient use of petroleum fuel. Other research-and-development efforts in alternative forms of power focus on developing all-electric and fuel cell vehicles , and even on

7192-401: The 1970s. Mother Earth News embraced the revived interest in the back-to-the-land movement at the beginning of the 1970s, and combined this with an interest in the ecology movement and self-sufficiency . Unlike many other magazines with ecological coverage, Mother Earth News concentrated on do-it-yourself and how-to articles, aimed at the growing number of people moving to the country. As

7316-400: The 20th century, it was primarily used to power ships, windmills and water pumps. Today, the vast majority of wind power is used to generate electricity using wind turbines. Modern utility-scale wind turbines range from around 600 kW to 9 MW of rated power. The power available from the wind is a function of the cube of the wind speed, so as wind speed increases, power output increases up to

7440-597: The American car companies continued, although by the end of the 1990s, the emphasis was on the FFV E85 version, as it is today. Ethanol was preferred over methanol because there is a large support in the farming community and thanks to government's incentive programs and corn-based ethanol subsidies. Sweden also tested both the M85 and the E85 flexifuel vehicles, but due to agriculture policy, in

7564-1021: The Asia-Pacific region led the global market with a share of 54%. In Europe they are popular in Italy (730,000), Ukraine (200,000), Armenia (101,352), Russia (100,000) and Germany (91,500), and they are becoming more so as various manufacturers produce factory made cars, buses, vans and heavy vehicles. In the United States CNG powered buses are the favorite choice of several public transit agencies, with an estimated CNG bus fleet of some 130,000. Other countries where CNG-powered buses are popular include India, Australia, Argentina, and Germany. CNG vehicles are common in South America, where these vehicles are mainly used as taxicabs in main cities of Argentina and Brazil. Normally, standard gasoline vehicles are retrofitted in specialized shops, which involve installing

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7688-643: The U.S. and Europe, flex-fuel vehicles are optimized to run on E85 . This limit is set to avoid cold starting problems during very cold weather. Over 65 million flex fuel automobiles, motorcycles and light duty trucks by the end of 2021, led by Brazil with 38.3 million and the United States with 27 million. Other markets were Canada (1.6 million by 2014), and Sweden (243,100 through December 2014). The Brazilian flex fuel fleet includes over 4 million flexible-fuel motorcycles produced since 2009 through March 2015. In Brazil, 65% of flex-fuel car owners were using ethanol fuel regularly in 2009, while,

7812-809: The US, with more favorable prices in the Midwest region, where most corn is grown and ethanol produced. In August 2008 the US average spread between the price of E85 and gasoline was 16.9%, while in Indiana was 35%, 30% in Minnesota and Wisconsin , 19% in Maryland , 12 to 15% in California, and just 3% in Utah . Depending on the vehicle capabilities, the break even price of E85 usually has to be between 25 and 30% lower than gasoline. Reacting to

7936-499: The United States, Brazil, Sweden, and some other European countries. Ethanol flexible-fuel vehicles have standard gasoline engines that are capable of running with ethanol and gasoline mixed in the same tank. These mixtures have "E" numbers which describe the percentage of ethanol in the mixture, for example, E85 is 85% ethanol and 15% gasoline. (See common ethanol fuel mixtures for more information.) Though technology exists to allow ethanol FFVs to run on any mixture up to E100, in

8060-537: The actual number of American FFVs being run on E85 is much lower; surveys conducted in the U.S. have found that 68% of American flex-fuel car owners were not aware they owned an E85 flex. There have been claims that American automakers are motivated to produce flex-fuel vehicles due to a loophole in the Corporate Average Fuel Economy (CAFE) requirements, which gives the automaker a "fuel economy credit" for every flex-fuel vehicle sold, whether or not

8184-497: The blend is burned in the combustion chamber together. These vehicles are colloquially called flex-fuel , or flexifuel in Europe, or just flex in Brazil. FFVs are distinguished from bi-fuel vehicles , where two fuels are stored in separate tanks. The most common commercially available FFV in the world market is the ethanol flexible-fuel vehicle , with the major markets concentrated in

8308-446: The burning of fossil fuels. The potential worldwide savings in health care costs have been estimated at trillions of dollars annually. The two most important forms of renewable energy, solar and wind, are intermittent energy sources : they are not available constantly, resulting in lower capacity factors . In contrast, fossil fuel power plants are usually able to produce precisely the amount of energy an electricity grid requires at

8432-778: The cold outer space. Solar energy hits the surface and atmosphere of the earth and produces heat. Using various theorized devices like emissive energy harvester (EEH) or thermoradiative diode, this energy flow can be converted into electricity. In theory, this technology can be used during nighttime. Producing liquid fuels from oil-rich (fat-rich) varieties of algae is an ongoing research topic. Various microalgae grown in open or closed systems are being tried including some systems that can be set up in brownfield and desert lands. There have been numerous proposals for space-based solar power , in which very large satellites with photovoltaic panels would be equipped with microwave transmitters to beam power back to terrestrial receivers. A 2024 study by

8556-693: The country, to long-time rural dwellers who found the DIY articles useful. In the March–April 1975 issue of the magazine, Issue No. 32, John Shuttleworth said in the second installment of the Plowboy Interview: For at least 20 years now, I've been getting an increasingly uncomfortable suspicion that all the major nations of the world — capitalist and communist — suffer from the narrow delusion that only people, and people alone, have any rights on this planet. Further, that human wants, needs, and desires — seemingly

8680-494: The crops used to produce bioethanol and biodiesel are grown specifically for this purpose, although used cooking oil accounted for 14% of the oil used to produce biodiesel as of 2015. The biomass used to produce biofuels varies by region. Maize is the major feedstock in the United States, while sugarcane dominates in Brazil. In the European Union, where biodiesel is more common than bioethanol, rapeseed oil and palm oil are

8804-412: The deforestation of tropical rainforests in Brazil and Indonesia. In addition, burning biomass still produces carbon emissions, although much less than fossil fuels (39 grams of CO 2 per megajoule of energy, compared to 75 g/MJ for fossil fuels). Some biomass sources are unsustainable at current rates of exploitation (as of 2017). Biofuels are primarily used in transportation, providing 3.5% of

8928-411: The emphasis on this technology is a diversion from the development and popularization of more efficient battery electric vehicles . In the light road vehicle segment, by the end of 2022, 70,200 hydrogen fuel cell electric vehicles had been sold worldwide, compared with 26 million plug-in electric vehicles. With the rapid rise of electric vehicles and associated battery technology and infrastructure,

9052-436: The end emphasis was given to the ethanol flexifuel vehicles. The main benefit of Diesel combustion engines is that they have a 44% fuel burn efficiency; compared with just 25–30% in the best gasoline engines. In addition diesel fuel has slightly higher energy density by volume than gasoline. This makes Diesel engines capable of achieving much better fuel economy than gasoline vehicles. Biodiesel (fatty acid methyl ester),

9176-700: The energy used to power internal-combustion engines (ICEs) and electric motors. These motors are usually relatively small and would be considered "underpowered" by themselves, but they can provide a normal driving experience when used in combination during acceleration and other maneuvers that require greater power. The Toyota Prius first went on sale in Japan in 1997 and it is sold worldwide since 2000. As of January 2017 , there are over 50 models of hybrid electric cars available in several world markets, with more than 12 million hybrid electric vehicles sold worldwide since their inception in 1997. A hydrogen car

9300-557: The engine increases the time during which the air charge is warmed from ambient sources and a two-stage process allows improved heat transfer rates. Electricity can be also stored in supercapacitors and superconductors. However superconductor storage is unsuitable for vehicle propulsion as it requires extreme deep temperature and produces strong magnetic fields. Supercapacitors, however, can be used in vehicles and are used in some trams on sections without overhead wire. They can be load in during regular stops, at which passengers enter and leave

9424-585: The fastest-growing renewable energy technology. It is cheap, low-maintenance and scalable; adding to an existing PV installation as demanded arises is simple. Its main disadvantage is its poor performance in cloudy weather. PV systems range from small, residential and commercial rooftop or building integrated installations, to large utility-scale photovoltaic power station . A household's solar panels can either be used for just that household or, if connected to an electrical grid, can be aggregated with millions of others. The first utility-scale solar power plant

9548-556: The first time a commercial ethanol flexible fuel car , the Gol 1.6 Total Flex. These vehicles were a commercial success and by early 2009 other nine Brazilian manufacturers are producing flexible fuel vehicles: Chevrolet , Fiat , Ford , Peugeot , Renault , Honda , Mitsubishi , Toyota , Citroën , and Nissan . The adoption of the flex technology was so rapid, that flexible fuel cars reached 87.6% of new car sales in July 2008. As of August 2008,

9672-507: The fleet of "flex" automobiles and light commercial vehicles had reached 6 million new vehicles sold, representing almost 19% of all registered light vehicles. The rapid success of "flex" vehicles, as they are popularly known, was made possible by the existence of 33,000 filling stations with at least one ethanol pump available by 2006, a heritage of the Pro-alcool program. In the United States, initial support to develop alternative fuels by

9796-548: The fuel cycle employed, extract almost all of the energy contained in uranium or thorium , decreasing fuel requirements by a factor of 100 compared to widely used once-through light water reactors , which extract less than 1% of the energy in the actinide metal (uranium or thorium) mined from the earth. The high fuel-efficiency of breeder reactors could greatly reduce concerns about fuel supply, energy used in mining, and storage of radioactive waste . With seawater uranium extraction (currently too expensive to be economical), there

9920-602: The gas cylinder in the trunk and the CNG injection system and electronics. The Brazilian GNV fleet is concentrated in the cities of Rio de Janeiro and São Paulo . Pike Research reports that almost 90% of NGVs in Latin America have bi-fuel engines , allowing these vehicles to run on either gasoline or CNG. Dual fuel vehicle is referred as the vehicle using two types of fuel in the same time (can be gas + liquid, gas + gas, liquid + liquid) with different fuel tank. Diesel-CNG dual fuel

10044-712: The global scope for hydrogen’s role in cars is shrinking relative to earlier expectations. Electric power fed from an external source to the vehicle is standard in railway electrification . At such systems usually the tracks form one pole, while the other is usually a single overhead wire or a rail insulated against ground. On roads this system does not work as described, as normal road surfaces are very poor electric conductors; and so electric vehicles fed with external power on roads require at least two overhead wires. The most common type of road vehicles fed with electricity from external source are trolleybusses , but there are also some trucks powered with this technology. The advantage

10168-409: The government was also a response to the 1973 oil crisis , and later on, as a goal to improve air quality. Also, liquid fuels were preferred over gaseous fuels not only because they have a better volumetric energy density but also because they were the most compatible fuels with existing distribution systems and engines, thus avoiding a big departure from the existing technologies and taking advantage of

10292-483: The grid to run the vehicle some or all of the time reduces operating costs and fuel use, relative to conventional vehicles. Until 2010 most plug-in hybrids on the road in the U.S. were conversions of conventional hybrid electric vehicles, and the most prominent PHEVs were conversions of 2004 or later Toyota Prius, which have had plug-in charging and more batteries added and their electric-only range extended. Chinese battery manufacturer and automaker BYD Auto released

10416-429: The heated 2008 food vs fuel debate. Most modern cars are designed to run on gasoline are capable of running with a blend from 10% up to 15% ethanol mixed into gasoline ( E10-E15 ). With a small amount of redesign, gasoline-powered vehicles can run on ethanol concentrations as high as 85% ( E85 ), the maximum set in the United States and Europe due to cold weather during the winter, or up to 100% ( E100 ) in Brazil, with

10540-437: The high price of oil and its growing dependence on imports, in 1975 Brazil launched the Pro-alcool program , a huge government-subsidized effort to manufacture ethanol fuel (from its sugar cane crop) and ethanol-powered automobiles. These ethanol-only vehicles were very popular in the 1980s, but became economically impractical when oil prices fell – and sugar prices rose – late in that decade. In May 2003 Volkswagen built for

10664-587: The higher operating pressures, that are designed thinner (heated) mineral diesel than ever before, for atomisation, if they were to use pure vegetable oil as fuel. Vegetable oil fuel is not suitable for these vehicles as they are currently produced. This reduces the market as increasing numbers of new vehicles are not able to use it. However, the German Elsbett company has successfully produced single tank vegetable oil fuel systems for several decades, and has worked with Volkswagen on their TDI engines. This shows that it

10788-687: The horizontal axis units currently in use. As offshore wind speeds average ~90% greater than that of land, offshore resources can contribute substantially more energy than land-stationed turbines. Investments in wind technologies reached USD 161 billion in 2020, with onshore wind dominating at 80% of total investments from 2013 to 2022. Offshore wind investments nearly doubled to USD 41 billion between 2019 and 2020, primarily due to policy incentives in China and expansion in Europe. Global wind capacity increased by 557 GW between 2013 and 2021, with capacity additions increasing by an average of 19% each year. Since water

10912-464: The magazine at this time to start BackHome Magazine . New American stopped publishing its magazines, and sold them to Sussex Publishers in 1991. The magazine survived, and grew through the late 1990s and the first half-decade of the 21st century. Notable gardener Ira Wallace was the mid-Atlantic correspondent during the 1990s. Sussex Publishers in New York City owned the magazine until 2001, when it

11036-607: The magazine's philosophies on hundreds of stations nationwide and alternative fuel vehicles carrying the Mother Earth News logo criss-crossed the country. The magazine flagged somewhat with the declining popularity of the back to the land movement in the early 1980s. Eventually, it was sold to the New American Company in 1986, who redesigned it with a much slicker image and repositioned it as "The Original Country Magazine." A number of employees of Mother Earth News left

11160-408: The main feedstocks. China, although it produces comparatively much less biofuel, uses mostly corn and wheat. In many countries, biofuels are either subsidized or mandated to be included in fuel mixtures . There are many other sources of bioenergy that are more niche, or not yet viable at large scales. For instance, bioethanol could be produced from the cellulosic parts of crops, rather than only

11284-504: The main sequence of stellar evolution. Artificial photosynthesis uses techniques including nanotechnology to store solar electromagnetic energy in chemical bonds by splitting water to produce hydrogen and then using carbon dioxide to make methanol. Researchers in this field strived to design molecular mimics of photosynthesis that use a wider region of the solar spectrum, employ catalytic systems made from abundant, inexpensive materials that are robust, readily repaired, non-toxic, stable in

11408-408: The maximum output for the particular turbine. Areas where winds are stronger and more constant, such as offshore and high-altitude sites, are preferred locations for wind farms. Wind-generated electricity met nearly 4% of global electricity demand in 2015, with nearly 63 GW of new wind power capacity installed. Wind energy was the leading source of new capacity in Europe, the US and Canada, and

11532-472: The medium-term, this variability may require keeping some gas-fired power plants or other dispatchable generation on standby until there is enough energy storage, demand response , grid improvement, and/or baseload power from non-intermittent sources. In the long-term, energy storage is an important way of dealing with intermittency. Using diversified renewable energy sources and smart grids can also help flatten supply and demand. Sector coupling of

11656-575: The more capricious the better — should be instantly gratified. And further still, that this can always be done in a strictly economic frame of reference. "In short, I think that we live in an unbelievably marvelous Garden of Eden. Surrounded by miraculous life forms almost without number. Kept alive by a mysteriously interwoven, self-replenishing support system that, with all our scientific 'breakthroughs,' we still do not understand. "And yet, as favored as we are by all this real wealth, we somehow perversely prefer to spend almost all waking hours interpreting

11780-1009: The need for traditional heavy battery banks, reducing weight and therefore increasing fuel efficiency. As of December 2015 , several neighborhood electric vehicles , city electric cars and series production highway-capable electric cars and utility vans have been made available for retails sales, including Tesla Roadster, GEM cars , Buddy , Mitsubishi i MiEV and its rebadged versions Peugeot iOn and Citroën C-Zero, Chery QQ3 EV , JAC J3 EV , Nissan Leaf , Smart ED , Mia electric , BYD e6 , Renault Kangoo Z.E. , Bolloré Bluecar , Renault Fluence Z.E. , Ford Focus Electric , BMW ActiveE , Renault Twizy , Tesla Model S , Honda Fit EV , RAV4 EV second generation , Renault Zoe , Mitsubishi Minicab MiEV , Roewe E50 , Chevrolet Spark EV , Fiat 500e , BMW i3 , Volkswagen e-Up! , Nissan e-NV200 , Volkswagen e-Golf , Mercedes-Benz B-Class Electric Drive , Kia Soul EV , BYD e5 , and Tesla Model X . The world's all-time top selling highway legal electric car

11904-406: The otherwise cold expanded air from the storage tank. This non-adiabatic expansion has the potential to greatly increase the efficiency of the machine. The only exhaust is cold air (−15 °C), which could also be used to air condition the car. The source for air is a pressurized carbon-fiber tank. Air is delivered to the engine via a rather conventional injection system. Unique crank design within

12028-479: The past 30 years. A large majority of worldwide newly installed electricity capacity is now renewable. Renewable energy sources, such as solar and wind power, have seen significant cost reductions over the past decade, making them more competitive with traditional fossil fuels. In most countries, photovoltaic solar or onshore wind are the cheapest new-build electricity. From 2011 to 2021, renewable energy grew from 20% to 28% of global electricity supply. Power from

12152-453: The point of use, and during combustion with air NOx can be produced. However, the most efficient use of hydrogen involves the use of fuel cells and electric motors instead of a traditional engine. Hydrogen reacts with oxygen inside the fuel cells, which produces electricity to power the motors, with the only byproduct from the spent hydrogen being water. A small number of commercially available hydrogen fuel cell cars currently exist:

12276-571: The power generation sector with other sectors may increase flexibility: for example the transport sector can be coupled by charging electric vehicles and sending electricity from vehicle to grid . Similarly the industry sector can be coupled by hydrogen produced by electrolysis, and the buildings sector by thermal energy storage for space heating and cooling. Building overcapacity for wind and solar generation can help ensure sufficient electricity production even during poor weather. In optimal weather, it may be necessary to curtail energy generation if it

12400-482: The primary challenges for new developments. It is popular to repower old dams thereby increasing their efficiency and capacity as well as quicker responsiveness on the grid. Where circumstances permit existing dams such as the Russell Dam built in 1985 may be updated with "pump back" facilities for pumped-storage which is useful for peak loads or to support intermittent wind and solar power. Because dispatchable power

12524-621: The range of electric vehicles. As of 2022, a handful of solar electric cars with varying performance are becoming commercially available, from Fisker and Lightyear , among others. Solar cars are raced in competitions such as the World Solar Challenge and the North American Solar Challenge. These events are often sponsored by Government agencies such as the United States Department of Energy keen to promote

12648-697: The renewable energy sector. Globally in 2020 there are over 10 million jobs associated with the renewable energy industries, with solar photovoltaics being the largest renewable employer. The clean energy sectors added about 4.7 million jobs globally between 2019 and 2022, totaling 35 million jobs by 2022. Alternative fuel vehicle An alternative fuel vehicle is a motor vehicle that runs on alternative fuel rather than traditional petroleum fuels ( petrol or petrodiesel ). The term also refers to any technology (e.g. electric cars , hybrid electric vehicles , solar-powered vehicles ) powering an engine that does not solely involve petroleum . Because of

12772-472: The results and seasonal harvests of sugar cane and by region. In the US, and based on EPA tests for all 2006 E85 models, the average fuel economy for E85 vehicles was found 25.56% lower than unleaded gasoline. The EPA-rated mileage of current American flex-fuel vehicles could be considered when making price comparisons, though E85 has octane rating of about 104 and could be used as a substitute for premium gasoline. Regional retail E85 prices vary widely across

12896-585: The second largest in China. In Denmark, wind energy met more than 40% of its electricity demand while Ireland, Portugal and Spain each met nearly 20%. Globally, the long-term technical potential of wind energy is believed to be five times total current global energy production, or 40 times current electricity demand, assuming all practical barriers needed were overcome. This would require wind turbines to be installed over large areas, particularly in areas of higher wind resources, such as offshore, and likely also industrial use of new types of VAWT turbines in addition to

13020-475: The sector's increasing maturity and cost reductions, particularly in solar photovoltaic (PV), which accounted for 90% of total investments. China and the United States were the main recipients, collectively making up about half of all solar investments since 2013. Despite reductions in Japan and India due to policy changes and COVID-19 , growth in China, the United States, and a significant increase from Vietnam's feed-in tariff program offset these declines. Globally,

13144-418: The seed as is common today. Sweet sorghum may be a promising alternative source of bioethanol, due to its tolerance of a wide range of climates. Cow dung can be converted into methane. There is also a great deal of research involving algal fuel , which is attractive because algae is a non-food resource, grows around 20 times faster than most food crops, and can be grown almost anywhere. Geothermal energy

13268-451: The solar sector added 714 gigawatts (GW) of solar PV and concentrated solar power (CSP) capacity between 2013 and 2021, with a notable rise in large-scale solar heating installations in 2021, especially in China, Europe, Turkey, and Mexico. A photovoltaic system , consisting of solar cells assembled into panels , converts light into electrical direct current via the photoelectric effect . PV has several advantages that make it by far

13392-564: The stored energy of compressed air . An environmental analysis of the impacts of various vehicle-fuels extends beyond just operating efficiency and emissions, especially if a technology comes into wide use. A life-cycle assessment of a vehicle involves production and post-use considerations. In general, the lifecycle greenhouse gas emissions of battery-electric vehicles are lower than emissions from hydrogen, PHEV, hybrid, compressed natural gas, gasoline, and diesel vehicles. As of 2019 , there were more than 1.49 billion motor vehicles on

13516-540: The sum total of this reality in terms of the narrow and distorted, strictly human-centered concept of money." In 1979 editor Bruce Woods and two other employees bought the magazine from the Shuttleworths. The Eco-Village , a 600-acre (240 ha) research center, was in full swing with vast experimental gardens, houses, and energy projects. Each summer 20,000 people took Mother Earth News seminars on everything from beekeeping to cordwood construction . A radio show shared

13640-513: The sun and wind accounted for most of this increase, growing from a combined 2% to 10%. Use of fossil energy shrank from 68% to 62%. In 2022, renewables accounted for 30% of global electricity generation and are projected to reach over 42% by 2028. Many countries already have renewables contributing more than 20% of their total energy supply, with some generating over half or even all their electricity from renewable sources. The main motivation to replace fossil fuels with renewable energy sources

13764-468: The technology employing the most at almost 4 million. However, as of February 2024, the world's supply of workforce for solar energy is lagging greatly behind demand as universities worldwide still produce more workforce for fossil fuels than for renewable energy industries. In 2021, China accounted for almost half of the global increase in renewable electricity. There are 3,146 gigawatts installed in 135 countries, while 156 countries have laws regulating

13888-407: The ten biggest solar power stations are in China, including the biggest, Golmud Solar Park in China. Unlike photovoltaic cells that convert sunlight directly into electricity, solar thermal systems convert it into heat. They use mirrors or lenses to concentrate sunlight onto a receiver, which in turn heats a water reservoir. The heated water can then be used in homes. The advantage of solar thermal

14012-501: The term is not synonymous with low-carbon energy . Some non-renewable sources of energy, such as nuclear power , generate almost no emissions, while some renewable energy sources can be very carbon-intensive, such as the burning of biomass if it is not offset by planting new plants. Renewable energy is also distinct from sustainable energy , a more abstract concept that seeks to group energy sources based on their overall permanent impact on future generations of humans. For example, biomass

14136-403: The train, but can only travel a few kilometres with the stored energy. However, this is no problem in this case as the next stop is usually in reachable distance. A solar car is an electric vehicle powered by solar energy obtained from solar panels on the car. Solar panels cannot currently be used to directly supply a car with a suitable amount of power at this time, but they can be used to extend

14260-484: The use of land for renewable installations. Like all mining, the extraction of minerals required for many renewable energy technologies also results in environmental damage . In addition, although most renewable energy sources are sustainable , some are not. Renewable energy is usually understood as energy harnessed from continuously occurring natural phenomena. The International Energy Agency defines it as "energy derived from natural processes that are replenished at

14384-497: The vehicle and the refueling infrastructure. California led the search of sustainable alternatives with interest in methanol . In 1996, a new FFV Ford Taurus was developed, with models fully capable of running either methanol or ethanol blended with gasoline. This ethanol version of the Taurus was the first commercial production of an E85 FFV. The momentum of the FFV production programs at

14508-585: The vehicle is actually fueled with E85 in regular use. This loophole allegedly allows the U.S. auto industry to meet CAFE fuel economy targets not by developing more fuel-efficient models, but by spending between US$ 100 and US$ 200 extra per vehicle to produce a certain number of flex-fuel models, enabling them to continue selling less fuel-efficient vehicles such as SUVs , which netted higher profit margins than smaller, more fuel-efficient cars. Battery electric vehicles (BEVs), also known as all-electric vehicles (AEVs), are electric vehicles whose main energy storage

14632-403: The world's roads, compared with approximately 159 million alternative fuel and advanced technology vehicles that had been sold or converted worldwide at the end of 2022 and consisting of: A flexible-fuel vehicle (FFV) or dual-fuel vehicle (DFF) is an alternative fuel automobile or light duty truck with a multifuel engine that can use more than one fuel , usually mixed in the same tank, and

14756-484: The world's transport energy demand in 2022, up from 2.7% in 2010. Biojet is expected to be important for short-term reduction of carbon dioxide emissions from long-haul flights. Aside from wood, the major sources of bioenergy are bioethanol and biodiesel . Bioethanol is usually produced by fermenting the sugar components of crops like sugarcane and maize , while biodiesel is mostly made from oils extracted from plants, such as soybean oil and corn oil . Most of

14880-502: The world, depending on the cost of drilling. EGS projects have so far primarily been limited to demonstration plants , as the technology is capital-intensive due to the high cost of drilling. Marine energy (also sometimes referred to as ocean energy) is the energy carried by ocean waves , tides , salinity , and ocean temperature differences . Technologies to harness the energy of moving water include wave power , marine current power , and tidal power . Reverse electrodialysis (RED)

15004-455: Was 1,360 GW. Only a third of the world's estimated hydroelectric potential of 14,000 TWh/year has been developed. New hydropower projects face opposition from local communities due to their large impact, including relocation of communities and flooding of wildlife habitats and farming land. High cost and lead times from permission process, including environmental and risk assessments, with lack of environmental and social acceptance are therefore

15128-843: Was acquired by its current owners, Ogden Publications . In 2010, the magazine celebrated its 40th anniversary. The February–March issue included articles from the magazine's previous 40 years. In 2020, the magazine celebrated its 50th anniversary, despite the COVID-19 pandemic. Each magazine issue that year contained content about the 50-year history of the title. Controversy hit the magazine in August, when they received public criticism from authors such as Chris Newman, for their lack of diversity in authors and representation. Ogden initially responded stumblingly, but has since embraced numerous initiatives to diversify its content, audience, and staff. Renewable energy Renewable energy (or green energy )

15252-517: Was built in 1982 in Hesperia, California by ARCO . The plant was not profitable and was sold eight years later. However, over the following decades, PV cells became significantly more efficient and cheaper. As a result, PV adoption has grown exponentially since 2010. Global capacity increased from 230 GW at the end of 2015 to 890 GW in 2021. PV grew fastest in China between 2016 and 2021, adding 560 GW, more than all advanced economies combined. Four of

15376-548: Was out in the market since 1890. Despite the poor sales of the early battery-powered vehicles, development of various battery-powered vehicles continued through the mid-1990s, with such models as the General Motors EV1 and the Toyota RAV4 EV . Battery powered cars had primarily used lead-acid batteries and NiMH batteries . Lead-acid batteries' recharge capacity is considerably reduced if they're discharged beyond 75% on

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