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Special Report

The Future of Alternative Energy

Geothermal, solar thermal, and even nuclear power could provide alternatives to today's carbon-based fuel sources

  • February 18, 2009

Today's Alternative Energy

Promising technologies to wean the world from fossil fuels, including offshore wind, solar, geothermal and hydrogen cars, among others

October 20, 2008
The Future of Nuclear Power

The Future of Nuclear Power

The U.S.--and the world--is gearing up to build a potentially massive fleet of new nuclear reactors, in part to fight climate change. But can nuclear power handle the load?

January 26, 2009

This summer, explore the cosmos with an All Access subscription.