Nuclear power: the energy crisis has even die-hard environmentalists reconsidering it. In this first-ever TED debate, Stewart Brand and Mark Z. Jacobson square off over the pros and cons. A discussion that'll make you think — and might even change your mind.

Modern communications systems send information across vast distances in massive quantities at breathtaking speeds. Every sector of the economy depends on the capture, access, and rapid transmission of information: from stock

This week, central and southwestern Louisiana have been slammed by unprecedented floods. Over the weekend, I watched heavy rains pour down on my community and my own home sink into rising waters. Across the region, tens of thousands of people have been evacuated, thousands of homes damaged, and at at least eleven people killed. This fills my heart with both a deep sadness and deep anger — at the fossil fuel companies driving this ongoing crisis, and at an Administration that continues to sell them the right to do so.