Sun Shines on Fuel Plants
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Two new facilities use solar power to produce hydrogen and biofuels, showing progress in the quest to add a little sun to your fuel tank. In Autopia.
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University of Minnesota scientists recently reported research results  indicating that biofuels derived from grassland plants yield up to twice  as much energy, per unit of land, as corn-based ethanol does.
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Two new studies suggest that exposure to sunlight might not be as risky for cancer as is generally believed.
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Scientists have struggled for years to make electricity from the sunâs light at a cost competitive with power from coal or natural gas. The challenges are formidable.
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Chemists unveil a type of material that could eventually help power plants generate electricity without emissions.
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HERMOSILLO, Mexico So much sun. Blistering, brutal sun.
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Researchers have shown that the Sun can be responsible for, at most, only a small part of the warming over the last 20-30 years.
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By Joyce Owen, Walton Sun, Santa Rosa Beach, Fla.  Feb.
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Scientists have struggled for years to make electricity from the sunâs light, at a cost competitive with other power sources. Now they are close, using the sunâs heat instead.
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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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Researchers are goading tiny organisms like bacteria and algae into producing fuels like hydrogen and methane. The process is not useful yet, but the technology could be a solution to the energy problem. By Amit Asaravala.
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It's time for a research resurgence into using small water plants to produce oil and ethanol. In Autopia.
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The Mars rovers fuel their instruments by following the sun and as their energy budget gets tighter during the winter, their terrestrial drivers get more skilled at driving towards the light.
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Real Goods Solar gets ready to join the mix.
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TROMSOE, Norway  - The world marked Environment Day on Tuesday with cheerful events like tree-planting and solar cooking in the heat of Asia, but also gloomier talk in the not-so-frozen north of melting polar caps.
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British scientists say they have found a new, greener way to power cars and homes using sunflower oil, a commodity more commonly used for cooking fries.
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Producing biofuels from a fast-growing grass emits up to 94% less carbon dioxide than petrol, a US study finds.