Three years have passed since the Deepwater Horizon oil rig exploded, killing 11 workers and leaving oil gushing into the Gulf of Mexico. From April 20th until July 15th, 2010, 200 million gallons of sticky, black crude oil spilled, affecting hundreds of miles of coastline and killing thousands...

A recent poll conducted by the Pew Research Center shows that a majority of Americans support the Keystone XL pipeline.

According to the nonpartisan group, 66 percent of Americans favor construction of the pipeline, which would extend from the tar sands in Alberta, Canada through the...

What would happen if the Keystone XL pipeline project did not go forward?

This is the question that Fareed Zakaria, CNN host and TIME editor-at-large, posed in an introduction to the above segment. His guest on the show, Sierra Club executive director Michael Brune, strongly disagrees...

February 17 was a sunny, clear day in Washington, D.C., although temperatures barely topped the freezing point. Despite the cold weather, an estimated 40,000 people gathered on the National Mall to participate in the Forward on Climate Rally, urging President Barack Obama to tackle climate change and deny...

In the days following Hurricane Sandy, politicians, activists and civilians alike jumped into action on recovery efforts. Local governments brainstormed ways to fix failing infrastructure, while people across the nation discussed the need for an epistemological shift on a federal level.

Now,...

Many people fantasize about swimming in the tropical coral reef, but very few actually get the chance to do so. For those who are unable to make the trip, Drs. Gerald Allen and Mark Erdmann of the Conservation Institute are bringing the magic of the reef to you with their...

Friday, April 27th 2012 is Arbor Day in the U.S. The national and international celebration started many years ago. In fact, Arbor Day had already been celebrated for over 100 years by the time Earth Day came around, and it all...

As the video above shows, few things could be cuter than a polar bear doing a headstand.

But sadly, natural pleasures like polar bear antics are in jeopardy of disappearing forever. This clip is a teaser for the nature documentary "To The Arctic," the debut film from...

On March 17th, St. Patrick's Day will be celebrated by the Irish (and many others) around the world. In addition to the eating, drinking and parades, the color green is a prominent and integral theme in this Irish holiday.

But what makes the Irish so green (beyond...

On Sunday, February 26th, the best and brightest in Hollywood will don their haute couture and make their way down the red carpet to be acknowledged for their contributions to the fine arts at the 84th Annual Academy Awards. And while all the nominees are stars in...