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Biogas Climate Benefit Greater Than Previously Thought?

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Biogas from refuse produces 95 per cent less greenhouse gas emissions than gasoline,
according to a new research report. With a few simple improvements to the biogas plants, the figure can rise to 120 per cent — i.e. biogas becomes more than climate neutral. This can be compared with the [...]

Is Algae Worse than Corn for Biofuels?

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A new analysis suggests so because of the need for copious fertilizer
Growing algae for use in biofuels has a greater environmental impact than sources such as corn, switch grass and canola, researchers found in the first life-cycle assessment of algae growth.
Interest in algae-based biofuels has blossomed in the [...]

Bacteria Engineered to Turn Carbon Dioxide Into Liquid Fuel

Global climate change has prompted efforts to drastically reduce emissions of carbon dioxide, a greenhouse gas produced by burning fossil fuels.
In a new approach, researchers from the UCLA Henry Samueli School of Engineering and Applied Science have genetically modified a cyanobacterium to consume carbon dioxide and produce the liquid fuel isobutanol, which holds great potential [...]

A Greener Way to Get Electricity from Natural Gas

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A new type of natural-gas electric power plant proposed by MIT researchers could provide electricity with zero carbon dioxide emissions to the atmosphere, at costs comparable to or less than conventional natural-gas plants, and even to coal-burning plants. But that can only come about if and when a price is set on the [...]

Cap and Fade

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AT the international climate talks in Copenhagen, President Obama is expected to announce that the United States wants to reduce its greenhouse gas emissions to about 17 percent below 2005 levels by 2020 and 83 percent by 2050. But at the heart of his plan is cap and trade, a market-based approach that [...]