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News articles on Renewable Energy

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Mongabay.com news articles on renewable energy in blog format. Updated regularly.

Biofuels 200 times more expensive than forest conservation for global warming mitigation
(8/27/2008) The British government should end subsidies for biofuels and instead use the funds to slow destruction of rainforests and tropical peatlands argues a new report issued by a U.K.-based think tank. The study, titled "The Root of the Matter" and published by Policy Exchange, says that "avoided deforestation" would be a more cost-effective way to address climate change, since land use change generates more emissions than the entire global transport sector and offers ancillary benefits including important ecosystem services.


How do wind turbines kill bats?
(8/25/2008) Numerous studies have shown that migratory bats are undergoing large fatalities due to wind turbines. Far more bats die due to wind turbines than birds, though they generally receive less attention. Now, researchers writing in Current Biology believe they know why bats are more susceptible to wind turbine fatalities.


Google, Australia give big boost to geothermal power production
(8/20/2008) Geothermal energy got a big boost this week with Google and the Australian government announcing multi-million initiatives that make use of Earth's heat as a clean and renewable source of power.


Algae could yield 30 times more biofuel than soybeans, while cleaning the environment
(8/15/2008) Algae could be used as a biofuel while simultaneously cleaning up the environment, report researchers at the University of Virginia.


PG&E will build the world's largest solar power plant
(8/15/2008) California electricity producer PG&E Thursday announced a plan to build two giant solar photovoltaic power plants that will cover 12.5 square miles and have a peak generating capacity of 800 megawatts.


Facing criticism, biofuels industry forms new lobby group to influence lawmakers
(7/25/2008) Under attack by politicians, aid groups, and environmentalists for driving up food prices and fueling destruction of ecologically sensitive habitats, some of the world's largest agroindustrial firms have formed a lobby group to influence consumers and lawmakers to support continued subsidies for biofuel production, reports Reuters.


Electric cars, greener fuels can reduce Australia's dependence on foreign oil
(7/23/2008) Australia can reduce its dependence on foreign oil through renewable energy and a shift towards electric cars powered by solar and wind power, argues a report published today by Australia's National Roads and Motorists' Association (NRMA).


Biofuels can reduce emissions, but not when grown in place of rainforests
(7/22/2008) Biofuels meant to help alleviate greenhouse gas emissions may be in fact contributing to climate change when grown on converted tropical forest lands, warns a comprehensive study published earlier this month in the journal Environmental Research Letters. Analyzing the carbon debt for biofuel crops grown in ecosystems around the world, Holly Gibbs and colleagues report that "while expansion of biofuels into productive tropical ecosystems will always lead to net carbon emissions for decades to centuries... [expansion] into degraded or already cultivated land will provide almost immediate carbon savings." The results suggest that under the right conditions, biofuels could be part of the effort to reduce humanity's carbon footprint.


Gore launches second campaign... for Earth
(7/17/2008) In a speech Thursday, Al Gore challenged the U.S. to generate 100 percent of its electricity from zero carbon emission sources within 10 years. Speaking at Washington's Constitution Hall, Gore said America's security, environmental and economic crises are all related, and that measures to rein in greenhouse gas emissions will make the U.S. stronger, safer, and cleaner. "The survival of the United States of America as we know it is at risk," Gore said. "I don't remember a time in our country when so many things seemed to be going so wrong simultaneously."


Breakthrough in solar energy: ten times more effective solar power may be available in three years
(7/10/2008) The breakthrough scientists have been waiting for to make solar power cheaper, more efficient--and therefore a more effective replacement for traditional energy sources--has been made by a group of MIT researchers.


Oceans hold vast potential for wind power
(7/9/2008) The North Pacific, Tasmania, New Zealand, Tierra del Fuego in South America, and the mid-latitudes of the Atlantic and Pacific oceans are potential locations for wind power generation, according to new satellite data from NASA.


Whale biomimicry inspires better wind turbines
(7/7/2008) By studying and mimicking the characteristics of the flippers, fins and tails of whales and dolphins, engineers have devised more a efficient way to generate wind power, reports a researcher presenting at the Society for Experimental Biology's Annual Meeting in Marseille, France.


Britain urges 'cautious approach' on biofuels
(7/7/2008) Britain and the E.U. should exercise caution in pushing for wider use of biofuels, warns a new study commissioned by the U.K. government.


Clean energy gold rush in 2007
(7/1/2008) New investment in renewables and energy efficiency surpassed $148 billion in 2007, rising 60 percent rise from 2006, according to an analysis issued Tuesday July 1 by the UN Environment Programme (UNEP). High oil prices drove the trend.


Louisiana signs non-corn ethanol law for to procude a better biofuel
(7/1/2008) Louisiana has signed into law legislation to develop an advanced biofuel industry that excludes corn as a feedstock, reports Biopact.


California plan would cut emissions 30% by 2020
(6/27/2008) California announced a plan to reduce state greenhouse gas emissions by 30 percent by 2020.


Brazil signs sustainable ethanol deal with Sweden
(6/27/2008) A group of Brazilian ethanol producers has signed the first deal to export certified sustainable ethanol, reports Reuters.


69% of Floridians believe coast threatened by rising sea levels
(6/24/2008) 69 percent of Floridians believe that parts of the state's coasts may need to be abandoned due to rising sea levels over the next 50 years according to a new survey conducted by researchers at Yale University and the University of Miami.


U.S. may allow corn farming on conservation land
(6/23/2008) The U.S. Department of Agriculture may allow farmers to plant corn on million of acres of conservation land to bolster the food supply in response to flooding in the Midwest and record high prices spurred by demand for domestic ethanol production, according to a report in the New York Times.


Biofuel production on abandoned lands could meet 8% of global energy needs
(6/23/2008) Using abandoned agricultural lands for biofuel production could help meet up to 8 percent of global energy needs without compromising food supplies or diminishing biologically-rich habitats, reports a new study published in the journal Environmental Science and Technology.


94% of Americans support solar energy development
(6/11/2008) 94 percent of Americans say it's important for the U.S. to develop and use solar energy, according to a new poll that found support for solar power runs across the political spectrum.


Cellulosic biofuels may be viable alternative to gas within 5 years
(6/2/2008) A new institute in the San Francisco Bay Area is seeking to make cellulosic biofuel an economically viable alternative to corn ethanol and gasoline within the next five years. The Joint BioEnergy Institute (JBEI), a partnership between three national laboratories and three Bay Area universities, was formed in June 2007 after the U.S. Department of Energy awarded the institute a $125 million grant to develop better methods for making liquid biofuels from the natural cellulose in trees and grasses. JBEI researchers expect cellulosic biofuels to yield more energy, produce less greenhouse gases, and have less impact on the environment than other alternatives to gasoline, such as corn ethanol.


Future cities will be more like ecosystems that enrich society and the environment
(5/28/2008) As The World Science Festival continues in New York this week, specialists in vastly diverse fields across scientific disciplines are coming together to talk about ideas, problems and solutions. From Astronomy to Bioacoustics, the dialogues about challenges and opportunities are rich and inspiring. At the front of this year's festival rests the issue of sustainability and how scientists, specialists and society will address the imminent environmental and economic trials we are sure to face in a rapidly changing and uncertain world.


Next gen biofuels could decimate rainforests
(5/27/2008) Next generation biofuels could decimate tropical forests says a leading ecologist from the University of Minnesota.


Will earthquake slow dam-building spree in China?
(5/14/2008) Monday's 7.9 magnitude earthquake in Sichuan province left more than 15,000 dead, 26,000 missing, and 64,000 injured, according to state media. The quake also "seriously damaged" two hydroelectric stations in Maoxian county, leading authorities to warn that the dams could burst. More than 2,000 troops were sent to work on the Zipingku Dam, a dam said to be in "great danger" of collapse upriver from Dujiangyan, the city at the quake's epicenter.


46% of Brazil's energy comes from renewable sources
(5/13/2008) Preliminary data from Brazil's energy ministry shows that bioenergy derived from sugar cane surpassed hydroelectric power as Brazil's secondary largest source of energy in 2007, reports Biopact.


China aims for 100 gigawatts of wind power by 2020
(4/29/2008) China aims to expand its wind power generating capacity to 100,000 megawatts by 2020, more than doubling the current world's installed capacity, according to the Shanghai Daily and The Wall Street Journal's Environmental Capital blog.


Cellulosic energy may trigger dramatic collapse in the Amazon
(3/11/2008) Next generation biofuels may trigger the ecological collapse of the Amazon frontier and could have profoundly unexpected economic consequences for the region, warns a paper published in Philosophical Transactions of the Royal Society B. Dr. Donald Sawyer writes that "interacting with climate change and land use, the upcoming stage of cellulosic energy could result in a collapse of the new frontier into vast degraded pasture." The shift could increase the incidence and severity of fires, reduce rainfall in key agricultural zones, exacerbate forest die-back and climate change, and worsen social instability. Sawyer says that while difficult to anticipate, the worst outcomes could likely be avoided be promoting "intensified and more sustainable use" of already cleared areas, minimizing new deforestation, and encouraging "sustainable use of natural resources by local communities."


Corn ethanol is worsening the Gulf dead zone
(3/10/2008) Proposed legislation that will expand corn-ethanol production in the United States will worsen the growing "dead zone" in the Gulf of Mexico and hurt marine fisheries, report researchers writing in the Proceedings of the National Academy of Sciences (PNAS).


Arizona seeks to become the 'Persian Gulf' of solar energy
(2/22/2008) With a Spanish company's plans to dramatically expand solar capacity in the desert southwest of Phoenix, Arizona Governor Janet Napolitano said Arizona could become the "Persian Gulf of solar energy," according to the Associated Press.


Private sector pumping hundreds of billions into cleantech
(2/21/2008) The private sector is "pumping hundreds of billions of dollars" into cleaner and renewable energies, says a new publication released yesterday by the United Nations Environment Programme (UNEP).


New World Record for Solar-to-Grid Conversion Efficiency
(2/13/2008) Sandia National Laboratories and Stirling Energy Systems (SES) set a new solar-to-grid system conversion efficiency record by achieving a 31.25 percent net efficiency, nearly a 2 point gain of the previous record of 29.4 percent set in 1984.


Sustainability mandated for biofuels used in the EU
(1/24/2008) Biofuels used in the European Union will have meet strict environmental requirements said the head of the E.U.'s energy program on Wednesday.


E.U. may ban palm oil biodiesel
(1/15/2008) The E.U. may ban imports of certain biofuel feedstocks that damage the environment, reports The New York Times. Environmentalists say some biofuels like palm oil are driving the destruction of biologically-rich rainforests and may produce more emissions than conventional fossil fuels.


Indonesia seeks to cut fuel subsidies via biofuels
(1/15/2008) Biofuels will make up 10 percent of Indonesia's fuel transport consumption by 2010 under a plan announced Monday by a senior government official, according to Reuters. The initiative could ease the economic impact of fuel subsidies - currently some of the highest in the world - in Indonesia, while boosting demand for locally produced bioenergy crops including palm oil, jatropha, sugar cane and cassava.


Switchgrass a better biofuel source than corn
(1/7/2008) Switchgrass yields more than 540 percent more energy than the energy needed to produce and convert it to ethanol, making the grassy weed a far superior source for biofuels than corn ethanol, reports a study published in Proceedings of the National Academy of Sciences (PNAS).


New process turns chicken fat into biodiesel
(12/20/2007) Chemical engineers at the University of Arkansas have devised a way to convert chicken fat into biodiesel fuel. The process advances efforts to "develop commercially viable fuel out of plentiful, accessible and low-cost feedstocks and other agricultural by-products," according to the researchers.


Google aims to make renewable energy sources cheaper than coal
(11/28/2007) Tuesday Google announced an initiative to develop electricity from renewable energy sources that will be cheaper than electricity produced from coal.


Cooking oil, palm oil biodiesel can reduce emissions relative to diesel
(11/28/2007) A lifecycle analysis of biodiesel by Australia's Commonwealth Scientific and Industrial Research Organization (CSIRO) shows that using palm oil derived from existing plantations can be an effective biofuel feedstock for reducing greenhouse gas emissions relative to conventional diesel fuel. However, palm oil sourced from rainforest and peatlands generating emissions 8 to 21 times greater than those from diesel.


UN says palm oil destroys forests, indigenous cultures in Indonesia, Malaysia
(11/26/2007) Europe's demand for supposedly eco-friendly biodiesel is fueling destruction of biodiverse rainforests in southeast Asia, warns a new report from the United Nations Development Programme (UNDP).


Wind could supply baseline electrical power
(11/22/2007) Wind power, long considered to be as fickle as wind itself, can be groomed to become a steady, dependable source of electricity and delivered at a lower cost than at present, according to scientists at Stanford University.


China begins blocking river for second largest dam
(11/12/2007) China began damming the Jinsha River for its biggest hydroelectric project after the Three Gorges Project, reports Chinese state media.


Carbon-negative bioenergy to cut global warming could drive deforestation
(11/6/2007) A proposed mechanism for generating carbon-negative bioenergy -- an energy source that reduces atmospheric carbon dioxide levels -- could drive large-scale deforestation in the tropics and undermine efforts to conserve forests for carbon offsets says a biofuel expert.


Does palm oil alleviate rural poverty in Malaysia?
(10/23/2007) While it is often argued that the economic benefits of oil palm plantations outweigh the environmental costs of converting biodiverse ecosystems to monocultures, new analysis suggests that the role of plantations in reducing rural poverty may be overstated.


Environmentalists and palm oil producers should work together
(9/25/2007) Environmentalists and palm-oil producers are increasingly at odds. Greens groups say palm oil is driving the conversion of tens of thousands of hectares of peatlands and lowland forest in Indonesia, putting wildlife at risk, increasing the vulnerability of forests to fires, and triggering large emissions of greenhouse gases.


Clean energy will improve health of the world's poor
(9/12/2007) Clean energy will help people live longer and healthier lives reports a study published in The Lancet. The research recommends a switch from fossil fuels towards renewable energy and improved access to electricity for the world's poor.


Wind power takes a toll on migratory bats
(9/12/2007) The danger of wind turbines to birds has long been known and well documented. Most recently several studies and articles have attempted to place the level of bird casualties in perspective: "More birds killed by cats than wind turbines". But lesser known--and lesser studied--is the effect wind turbines have on bat populations. Collisions between groups of bats and wind turbines have been observed at numerous turbines in America, Australia, and Europe. While these fatalities, sometimes killing hundreds of bats, have been seen for years, their cause remains unknown.


New Nebraska ethanol plants threaten Kansas water supplies
(9/5/2007) Ethanol production is threatening water supplies in the American Midwest reports the Wall Street Journal.


Guidelines to ensure biofuels production won't hurt the environment
(8/30/2007) Environmentalists have long seen biofuels as a means to improve the sustainability of transportation and energy use since they are a renewable source of energy that can be replenished on an ongoing basis. Further, because biofuels are generally derived from plants, which absorb carbon from the atmosphere as they grow, biofuel production offers the potential to help offset carbon dioxide emissions and mitigate climate change. Nonetheless, in recent years, there has been considerable backlash against biofuels, which are increasingly viewed as a threat to the environment. Green groups now point to large-scale land conversion for energy crops, higher food prices, and a spate to studies that suggest net emissions from corn ethanol are little better than those from fossil fuels, to caution that biofuels can cause more problems than they address.


With Corn ethanol more costly than oil, is Jatropha a better biofuel?
(8/24/2007) Jatropha may be a more economic biofuel than corn-based ethanol, reported the The Wall Street Journal on Friday, citing research from Goldman Sachs.



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