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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.

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.


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.


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

(11/06/2007) 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

(09/25/2007) 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

(09/12/2007) 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

(09/12/2007) 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.


Guidelines to ensure biofuels production won't hurt the environment

(08/30/2007) 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?

(08/24/2007) Jatropha may be a more economic biofuel than corn-based ethanol, reported the The Wall Street Journal on Friday, citing research from Goldman Sachs.


Groups demand AES withdraw from Panama dam projects

(08/23/2007) More than 50 green groups demanded Thursday that AES Corporation withdraw from three controversial hydroelectric projects that are threatening La Amistad International Park in Panama. Environmentalists say the dams threaten to displace wildlife and local communities -- the Naso and Ngobe people -- in the World Heritage site.


Corn ethanol is not the solution to energy independence

(07/18/2007) A new report claims that corn ethanol will not significantly offset U.S. fossil fuel consumption without "unacceptable" environmental and economic consequences.


Florida to cut greenhouse gas emissions 80% by 2050

(07/15/2007) Florida plans to cut greenhouse gas emissions 80 percent from 1990 levels by 2050 according to Charlie Crist, Florida's Republican state governor. Due to its low elevation and hurricane risk, global warming may pose the biggest risk to Florida of any U.S. state.


McDonald's bolsters eco credentials with recycled biodiesel

(07/09/2007) McDonald's Corp. (Public, NYSE:MCD), the fast-food chain, has bolstered its 'green' credentials by announcing that its UK distribution fleet will be powered by biodiesel made of recycled cooking oil from its restaurants. While the move is expected to save only around 1,675 tons of carbon annually, environmentalists say it sets an important precedent for the parent company and the fast-food industry as a whole.


Inflatable concentrators may cut cost of solar below conventional power plants

(07/08/2007) Cool Earth Solar, a Livermore, California-based company developing an innovative way for capturing solar energy, has merged with Radiant Energy, a developer and owner of renewable and clean energy power plants including solar, geothermal, and hydroelectric. Rob Lamkin, CEO of Radiant Energy, says the merger will help ramp up the technology, which uses inflatable solar concentrators to minimize use of refined silicon, a costly ingredient in solar cells. Lamkin says the technology could dramatically reduce the cost solar energy, bringing it below the cost natural gas-fired power plants.


Set back for AES on rainforest dam project in Panama

(06/26/2007) The World Heritage Committee moved to assess threats to La Amistad International Park, a World Heritage site shared by Panama and Costa Rica, from AES Corporation's planned construction of four hydroelectric dams on the park's border. The decision was based on an April 2007 petition from the Center for Biological Diversity and more than 30 other organizations in the United States, Panama, and Costa Rica.


$100 billion invested in renewable energy in 2006

(06/20/2007) $100 billion poured into renewable energy and energy efficiency in 2006, a 25 percent jump from 2005, reports a new analysis by the UN Environment Programme (UNEP).


Largest Solar Thermal Power Plant Built in 16 Years Goes Online

(06/08/2007) SCHOTT today announced that with the connection of the Nevada Solar One power plant to the grid, its solar receivers officially began collecting solar radiation needed to generate clean energy for Nevada homes.


Nobel prize winner debates future of nuclear power

(06/07/2007) Two renowned energy experts sparred in a debate over nuclear energy Wednesday afternoon at Stanford University. Amory Lovins, Chairman and Chief Scientist of the Rocky Mountain Institute, an energy think tank, argued that energy efficiency and alternative energy sources will send nuclear power the way of the dinosaurs in the near future. Dr. Burton Richter, winner of the 1976 Nobel Prize in physics, said that nuclear would play an important part of the future energy portfolio needed to cut carbon emissions to fight global warming.


UN warns on dangers of bioenergy

(05/09/2007) Biofuels offer "an extraordinary opportunity" to reduce greenhouse gas emissions but could make "substantial demands on the world's land and water resources at a time when demand for both food and forest products is also rising rapidly," said the U.N. in its first assessment on the growing bioenergy industry.


Cost of stabilizing climate 0.1% per year

(05/04/2007) The Intergovernmental Panel on Climate Change (IPCC) released its long awaiting installment on climate change mitigation, arguing that the costs of offsetting global warming will be much lower than some claim. The IPCC estimates that emissions can be reduced rapidly using existing technology at a cost of 3 percent of GDP, or 0.12 percent per year over the next 25 years, though new technologies could further reduce this cost. While the projections are encouraging, they may be conservative. Some analysts, including the well-respected Amory Lovins of the Rocky Mountain Institute, have calculated that emissions targets that would stabilize the climate could be achieved at no net cost and possibly even a profit. Even McKinsey & Company, a leading management consulting firm, agrees, putting the net cost of reducing emissions by 46 percent at zero.


Wind energy has promise, but brings concerns, reports study

(05/03/2007) While wind-generated energy has the potential to produce clean electricity without carbon dioxide emissions, more research is needed to understand its impact on wildlife says a new report from the National Research Council, a private, nonprofit institution that provides science and technology advice under a congressional charter.


Cleantech investment booms, but energy tech bubble looms

(04/30/2007) Investors are pouring money into clean technology, with spending on R&D rising to $48 billion in 2006, up 9% from 2005, reports a new study by Lux Research, an emerging technology research and advisory firm. However, the report warns that the energy technology sector is showing signs of a bubble, with initial public offering (IPO) values and venture capital deployments more than doubling last year.


Dutch plan restricts biofuels that damage environment

(04/29/2007) The Netherlands has proposed a system to reduce the environmental impact of biofuels production. The country becomes the first in the world to establish such guidelines. Environmentalists have expressed increasing concern for the establishment of energy crops in biodiverse and carbon-rich ecosystems like the peatlands of Indonesia and the Amazon rainforest. They say that conversion of these forests for oil palm and soybeans is threatening endangered species and worsening global warming. Further, they warn, demand for such biomass energy products is driving up prices for food crops.


Dutch will demand rainforest-friendly palm oil

(04/27/2007) In a report scheduled to be released today, the Dutch government will outline criteria for growing biofuels in a more sustainable manner. The guidelines will be closely watched by the rest of Europe, which is currently struggling with the environmental pros and cons of large-scale energy crop production, especially in ecologically-sensitive areas like the Amazon and Indonesian rainforests.


Biodiesel may worsen global warming relative to petroleum diesel

(04/23/2007) Biodiesel made from rapeseed could increase rather than reduce greenhouse emissions compared to conventional diesel fuels, reports a new study published in the journal Chemistry & Industry. Overall the researchers found that petroleum diesel and rapeseed biodiesel, presently the main biofuel used across Europe, have a similar environmental impact. The results suggest that efforts to mitigate climate change through the adoption of rapeseed biodiesel may be of little use beyond energy security.


AES Corp seeks to flood rainforest World Heritage site

(04/23/2007) American power company AES Corporation seeks to flood sections of Panama's La Amistad World Heritage site, alleges a coalition of more than 30 environmental groups that today filed a petition against the electric utility.


Ethanol may be greener but have higher health cost

(04/18/2007) Widespread burning of ethanol as fuel may increase the number of respiratory-related deaths and hospitalizations relative to gasoline, according to a new study by Stanford University atmospheric scientist Mark Z. Jacobson. The report comes as mounting environmental concerns cloud the benefits of using ethanol as a green alternative to fossil fuels.


Device uses solar energy to convert CO2 into fuel

(04/18/2007) Chemists at the University of California, San Diego, (UCSD) have devised a device that uses solar energy to convert carbon dioxide into fuel. While the machine is only a prototype and not yet optimized, the researchers hope that their work will attract attention to their approach.


Palo Alto aims to cut CO2 emissions 80% by 2050

(04/15/2007) The city of Palo Alto, California aims to cut greenhouse gas emissions significantly in coming years, joining a growing number of U.S. cities that have pledged to cut emissions by 80 percent by 2050. The goal, set forth in Green Ribbon task force report last year, was discussed by a panel of experts convening at Stanford University Sunday.


Palm oil doesn't have to be bad for the environment

(04/04/2007) As traditionally practiced in southeast Asia, oil palm cultivation is responsible for widespread deforestation that reduces biodiversity, degrades important ecological services, worsens climate change, and traps workers in inequitable conditions sometimes analogous to slavery. This doesn't have to be the case. Following examples set forth by the Roundtable on Sustainable Palm Oil and firms like Golden Hope Plantations Berhad, a Malaysian palm oil producer, oil palm can be cultivated in a manner that helps mitigate climate change, preserves biodiversity, and brings economic opportunities to desperately poor rural populations.


Eco-friendly palm oil could help alleviate poverty in Indonesia

(04/03/2007) The Associated Press (AP) recently quoted Marcel Silvius, a climate expert at Wetlands International in the Netherlands, as saying palm oil is a failure as a biofuel. This would be a misleading statement and one that doesn't help efforts to devise a workable solution to the multiplicity of issues surrounding the use of palm oil.


U.S. can cut oil imports to zero by 2040, use to zero by 2050

(03/29/2007) The United States could dramatically cut oil usage over the next 20-30 years at low to no net cost, said Amory B. Lovins, cofounder and CEO of the Colorado-based Rocky Mountain Institute, speaking at Stanford University Wednesday night for a week-long evening series of lectures sponsored by Mineral Acquisition Partners, Inc.


Biofuels demand will increase, not decrease, world food supplies

(03/27/2007) As concerns mount over fuel-versus-food competition for crops, a Michigan State University ethanol expert says that cellulosic ethanol could render the debate moot. Bruce Dale, an MSU chemical engineering and materials science professor, notes that ethanol can be made from cellulosic materials, like farm waste, instead of corn grain.


Biofuel Cell Produces Electricity from Hydrogen in Plain Air

(03/27/2007) A pioneering biofuel cell that produces electricity from ordinary air spiked with small amounts of hydrogen offers significant potential as an inexpensive and renewable alternative to the costly platinum-based fuel cells that have dominated discussion about the hydrogen economy of the future, British scientists reported here today.


Bush, U.S. automakers look for easy way out of fuel standards

(03/26/2007) President Bush praised U.S. automakers on their efforts to build more 'flexible fuel' vehicles capable of running on blends of gasoline and biofuels like ethanol and biodiesel. Environments retorted that the announcement was simply a ploy to undermine efforts to develop more fuel efficient cars, according to The Associated Press.


New green biofuels process could meet all U.S. transportation needs

(03/14/2007) Purdue University chemical engineers have proposed a new environmentally friendly process for producing liquid fuels from plant matter - or biomass - potentially available from agricultural and forest waste, providing all of the fuel needed for "the entire U.S. transportation sector."


Bush administration cuts funding for geothermal energy

(03/13/2007) The Bush Administration is seeking to eliminate federal funding for geothermal energy research according to a report from Reuters. Oddly, the move comes as the White House has made a push for renewable energy to reduce dependence on foreign oil imports. Apparently the administration appears to be focused on biofuels as liquid fuels and nuclear for electricity generation.


Wind energy speculation jumps in Texas, but Exxon on sidelines

(03/12/2007) While speculative energy ventures are nothing new in Texas, today companies are taking risky gambles in wind power argues an article that appears in today's issue of The Wall Street Journal (WSJ). The WSJ reports that energy firms are investing hundreds of millions of dollars in some of the most remote -- and windy -- parts of Texas, but notes that the investments will only pay off with government subsidies.


Government pledges $385M for cellulosic ethanol

(03/08/2007) The U.S. Department of Energy (DOE) announced it will invest up to $385 million over the next four years for six biorefinery projects capable of producing more than 130 million gallons of cellulosic ethanol annually.


Termites can make ethanol

(03/06/2007) Achim Steiner, Executive Director of the UN Environment Programme (UNEP), says that termites can be used to make eco-friendly ethanol. He cites U.S. government backed research showing that "microbes living in the guts of termites have potent enzymes able to efficiently and cost effectively transform woody wastes into sugars for ethanol production."


Balloon technology could cut cost of solar energy 90% by 2010

(02/21/2007) With high energy prices and mounting concerns over human-induced climate change, there is intense interest in renewable energy, especially solar, which produces no pollution and is readily available in the form of sunlight. In recent years, however, the solar energy market has been hampered by supply shortages of refined silicon, the critical resource needed for solar cell fabrication. Further, because solar installations traditionally require a large surface area to capture as much sunlight as possible, solar arrays often take up real estate, occupying land used agricultural production and other purposes. Without government subsidies, solar is not presently viable in many areas.


Ethanol always not as green as some believe

(02/16/2007) Ethanol is generally not as green as some people believe says Bruce Dale, Michigan State University professor of chemical engineering and materials science. Speaking at the American Association for the Advancement of Science annual meeting in San Francisco, Dale says that while corn ethanol produces less greenhouse gases than gasoline, it can cause other detrimental environmental effects if not carefully managed.


Weedy grass could free U.S. of foreign oil dependence says biologist

(02/16/2007) A weedy grass may hold the key to domestic energy security and mitigating emissions of greenhouse gasese, said a Stanford University plant biologist speaking Friday at the annual meeting of the American Association for the Advancement of Science in San Francisco.


Brazil calls out rich countries on global warming

(02/06/2007) Reuters reports that Brazilian President Luiz Inacio Lula da Silva criticized wealthy countries for their contributions to global warming and told them to stay out of Brazil's business when it comes to the fate of the Amazon rainforest.


Industrial waste dump becomes biofuel source

(02/01/2007) Shrub willows growing on land that was once considered an industrial waste site will be used to produce green energy according to researchers at the SUNY College of Environmental Science and forestry (ESF).


Biofuels could decimate environment, stymie developing countries, says report

(01/25/2007) In his State of the Union Address Tuesday night, U.S. President George W. Bush highlighted ethanol fuel production as a means to improve domestic security by reducing dependence on foreign oil while at the same time helping to fight global warming. His call echoes a broader shift in sentiment among business and political leaders who believe that biofuels -- liquid fuels produced 'energy crops' including sugarcane, corn, soybeans, oil palms -- are a key future liquid energy source. In fact, next week, biofuels are likely to take a prominent position at the European Union's 'Sustainable Energy Week' in Brussels when 650 delegates will listen to speeches by the likes of Al Gore and UK foreign minister Margaret Beckett. With all the enthusiasm it may seem that biofuels are the end-all solution. A new report argues that this is not the case. In its briefing, 'International trade in biofuels: Good for development? And good for environment?' the International Institute for Environment and Development (IIED) cautions policymakers not to get caught up in all the hype. IIED warns that serious concerns still remain when it comes to the widespread adoption of these renewable energy sources.


Air pollution may reduce wind power, rainfall

(01/22/2007) Aerosolized particles and other pollution produced from vehicle exhaust may reduce wind speeds near Earth's surface, resulting in less wind for power generation as well as reduced precipitation, according to a study published in the December 27th online edition of Geophysical Research Letters by researchers at Stanford University and NASA.



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