GLOBAL WARMING

The administration had already proposed limits on greenhouse gas emissions for newly built plants.

By 2050, more than 800,000 New York City residents could be in a flood zone that would encompass one quarter of the city's land.

Canadian Prime Minister Stephen Harper said increasing the oil supply to the U.S. was inevitable.

It's springtime and there's ice out? Check out this incredible video of ice needle waves washing on shore in Minnesota's Medicine Lake.

Environmental conservation in an age of climate change is tough -- the big solutions necessary to fix things have their own associated risks.

An advocacy group warns that climate change will drive citizens of small Pacific island nations to flee to Australia and it should prepare now.

Thatcher was a staunch free-market advocate, but she also believed that economic growth should not come at the expense of the environment.

A new federal conservation plan has ambitious goals, but there's no clear authority or timetables in place.

The global cost of natural disasters has tripled over the past three decades, but global warming is not the main culprit.

American farmers and ranchers will face increasing challenges due to climate change, a government report warns.

The receding Arctic Ocean ice has opened up two major sea lanes that maritime shippers are using to cut costs.

If Americans worked less, like Europeans, global warming may slow down, thereby saving the planet, according to a liberal think tank.

Sheep farming, an ancient and iconic institution in rural Wales, is threatened on a number of fronts.

Donor-advised funds have reportedly channeled money from the Kochs to groups that deny the link between fossil fuels and global warming.

Incredibly warm springs in 2010 and 2012 resulted in the earliest known flowering in 161 years at two sites in Massachusetts and Wisconsin.

Last year was also the 36th consecutive year to register a global temperature above the 20th-century average.

Eastern European tree samples confirm that the recent warming in the region is outpacing any natural climate variations seen since the Middle Ages.

How could Superstorm Sandy have plunged 90 percent of us into the dark, displaced thousands and caused misery: complacency.

Some meteorologists are drawing comparisons between Hurricane Sandy's approach and the “Perfect Storm” of 1991 - Hurricane Grace.

A dozen British scientists, engineers and researchers will drill down in December to a buried Antarctic lake 2 miles under an ancient ice sheet, gathering water and sediment samples in the hopes of discovering clues about the Earth's climate history and possibly new life forms.

The video, released on Thursday, highlights the pledges President Obama has kept since entering the White House. But what promises hasn't he kept?