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Get the skinny on RECs.
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Tomorrow's energy crops are germinating in laboratories today.
A store can still be welcoming without having its door wide open and the AC flowing straight out on to the street.
Do you turn off your lights when you leave a room?
The annual market for wind continued to increase at the staggering rate of 32 percent following the 2005 record year, in which the market grew by 41 percent.
Will the silicon shortage stunt the solar industry's growth?
Three new technologies are making wave power attractive, both to private investors and government-run utilities.
Fuel-cell advocate Daniel Emmett on why wary greenies should embrace new technology.
Activist and author blogs about politics, energy and Earth's resources.
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Science journalist blogs about humans and other wildlife.