Andrew Revkin

What could happen to diplomatic efforts on climate change if conditions in the next decade meet the prediction of some scientists that flat or cooling temperatures lie ahead before things heat up in a big way again?

A spreading oil stain taints tropical waters, but far from oil's consumers.

Fresh views on the role of government and grad students in driving energy innovation.

Cities from San Antonio to Singapore are resuscitating waterways that once lay buried under rivers of concrete.

Saturday was World Population Day, so I scanned the Web for unconventional efforts to convey and debate the drivers of, and consequences of, population growth. One was a recent talk by Hans Rosling, a ...

NASA scientists see big impacts from loss of Arctic sea ice.

Can Obama keep his pledge to lead the globe toward action on climate?

Decaying landscapes left behind by the real estate bubble.

In an effort to blunt the momentum of the energy and climate bill that the House narrowly passed on Friday, Republicans are raising the specter of the failed effort by President Bill Clinton to craft an energy tax in 1993, according to an article filed by Carl Hulse of our Washington bureau. ...

[UPDATE, 8:30 pm: In a political triumph for Democratic leaders, the House narrowly passed the American Clean Energy and Security Act this evening. John Broder's news story has the details and Twitter has the reaction. ...