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New data show emissions from January to March were the lowest in two decades.
BrightSource’s 370-megawatt facility near Las Vegas is taking shape, but the future of solar thermal is much more fuzzy.
Tesla’s innovations in batteries give it an edge that Fisker, focused on design, lacks.
The production tax credit doesn’t promote radical innovation, but maybe that’s okay.
The fledgling U.S. wind industry would be significantly set back if the credit isn’t renewed.
A Texas company says it can make a new ultracapacitor power system to replace the electrochemical batteries in everything from cars to laptops.
A leading climate scientist describes the possible connection.