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A compendium of science-based information

Greenhouse gas emissions from nuclear electricity: low, but not zero

Where are the nation’s alternative-energy hotspots?

Fossil fuels supply about 80% of the energy in corn ethanol

Federal law sets a minimum annual level of biofuel production

Iowa is the nation’s largest producer of corn ethanol

Montana’s wind could make as much the electricity as nineteen states use

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The Age of Man: A New Geologic Epoch Scientists think the past 250 years represent the beginning of a new geologic era, marked by human influence around the planet.

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