Golden State lawmakers ask which is more important: building the nation's largest solar-energy farm or protecting a fragile ecosystem?
Wind turbines are clustered offshore in Dronten, the Netherlands, in July 2006. On April 28, Interior Secretary Ken Salazar approved the US's first offshore wind farm, approving Cape Wind, a project that would create hundreds of jobs and provide nearly 75 percent of the power needed by the Cape and the islands of Martha's Vineyard and Nantucket.
Did Congress try to bypass court orders and keep a cross on federal land? That's one question in the Supreme Court case about a cross erected in a national park in 1934 to honor the war dead.
A white cross has stood in the Mojave National Preserve since 1934. On Wednesday, the Supreme Court will look at issues related to the First Amendment's separation of church and state.
California firefighters battle a terrible fire season caused by weeks of hot and dry weather.
Four technologies aim to use heat from the sun to make electricity. But which one has the edge?
Philosopher-author Alain de Botton asks: Why do we work?
Australian sculptor brings a rare civic vision to his geoglyphs the world over.
On Monday, ZenithSolar unveiled a new solar dish that could make the cost of solar energy competitive with fossil fuels.
Thriving forest pests and melting glaciers may make parks a warning system for climate change effects.