Energy Secy advances nano science in spare time

(AP) -- Some people relax by doing crossword puzzles, watching movies or reading a good book. In his down time, often while flying somewhere, Energy Secretary Steven Chu relaxes by tackling a scientific conundrum and stretching ...

New radioactive waste leak found in tank at Hanford nuclear site

An aging tank of high-level radioactive waste is leaking at the Hanford nuclear site in south-central Washington state at the rate of up to 300 gallons a year, federal authorities disclosed Friday after discovering a dip ...

Solar, geothermal projects touted at Vegas summit

The Obama administration's top land official praised a geothermal electricity project in California's snow-capped mountains as an example for others during a headline appearance at a green energy conference in Las Vegas.

Energy secretary: Islands could disappear

(AP) -- U.S. Energy Secretary Steven Chu is warning that if countries don't do something about climate change, "some island states will simply disappear."

US more optimistic about climate deal after talks

(AP) -- The top U.S. negotiator on climate change said Tuesday that he is slightly more optimistic about striking a new international agreement to curb global warming after a two-day meeting with the world's largest emitters ...

Federal OK sought for loans for California energy projects

Plans for a massive expansion of clean energy in California are being jeopardized by federal foot-dragging, according to state officials who say that more than 20 nearly shovel-ready solar and wind projects are being held ...

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