Study: Ethanol may add to global warming
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The widespread use of ethanol from corn could result in nearly twice the greenhouse gas emissions as the gasoline it would replace because of expected land-use changes, researchers concluded Thursday. The study challenges the rush to biofuels as a response to global warming.
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Global warming may release methane&#151;a greenhouse gas 20 times more potent than carbon dioxide&#151;that increases temperatures and unlooses more methane, new research suggests.
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Fans would be more likely to try ethanol made in the USA if their NASCAR heroes used the fuel, according to a GM VP. Plus: The EU agrees to base emissions tax on the size of the emissions, not the vehicle. In Autopia.
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An unexplained jump in greenhouse gases  since 2002 might herald a catastrophic acceleration of global  warming if it becomes a trend, scientists said on Monday.
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By CHRIS YOUNG OUTDOORS EDITOR  The push to produce more renewable fuels such as ethanol has to be about the best news for corn growers since Henry Wallace introduced hybrid varieties in the 1920s.
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Our South American neighbor expands its production of ethanol and biodiesel. Partnering with Brazil would benefit the economy of a democracy and clean our skies. In Autopia.
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Growing capacity could break the heart of ethanol investors.
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New research shows that prairie grasses grown using only moderate amounts of fertilizer on marginal land can produce significant amounts of ethanol.
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NEW YORK  - Previous reports have suggested  that alcohol use helps cancers grow and now, new research  offers a possible explanation for this phenomenon.
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Science & environment: Rising global temperatures could trigger a huge extinction of plants and animals, according to a  study.
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A Bush administration report suggests that evidence of global warming has begun to affect animal and plant populations in visible ways, and that rising temperatures in North America are due in part to human activity.
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The amount of carbon dioxide in the Earth&#39;s atmosphere has increased faster than expected in the last two years, renewing concern that global warming may accelerate.
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Researchers look back millions of years to predict how the Earth may react to current elevated levels of carbon dioxide. They say our planet appears more vulnerable to the greenhouse gas than previously believed. By Stephen Leahy.
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Global warming could lead to a big chill in the North Atlantic, at least if history is anything to go by, researchers reported on Friday.
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Stanford researcher finds first link between rising levels of carbon dioxide and increased human mortality, a finding that could bolster efforts by California and 15 other states to regulate greenhouse gas emissions from automobiles.
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Fools share their thoughts on ethanol and energy.
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Illinois startup Coskata says it can make ethanol out of almost anything for under a buck a gallon. Environmentalists and energy experts are cautiously optimistic that the company may be on to something.