(AP) -- The smell of manure hangs over Greeley as it has for half a century. These days it's more than just a potent reminder of the region's agricultural roots and the hundreds of thousands of cattle raised on the city's ...
Energy & Green Tech
Oct 17, 2009
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(PhysOrg.com) -- A tiny microbe can take electricity and directly convert carbon dioxide and water to methane, producing a portable energy source with a potentially neutral carbon footprint, according to a team of Penn State ...
Biochemistry
Mar 30, 2009
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(PhysOrg.com) -- Researchers at The Pennsylvania State University have determined a way to use arrays of nanotubes in a solar-based process to convert carbon dioxide and water into methane and other hydrocarbon fuels. Their ...
