By Valerie Volcovici WASHINGTON, Jan 24 (Reuters) - Several Democratic lawmakers on Thursday urged President Barack Obama to use his b...

By Stephanie Pappas, LiveScience Senior Writer: As President Barack Obama prepares to take the oath of office for the second time, he has promised...

On the night of his re-election, President Barack Obama described grand ambitions for his second term, including a desire to bequeath to future genera...

It's not a fight, like education reform or abortion or gay marriage, between conflicting groups with conflicting opinions. We're talking about a fight between human beings and physics. And physics is entirely uninterested in human timetables.

DOHA, Qatar — During a year with a monster storm and scorching heat waves, Americans have experienced the kind of freakish weather that many sci...

STOCKHOLM (AP) — The European Union's climate commissioner says she hopes that President Barack Obama's renewed attention to global warming after th...

Time will tell whether Obama stays true to his word, but it sure as heck isn't a good sign that the President already appears to be waffling on an issue that just eight days ago he spoke so passionately about.

With President Barack Obama's reelection victory unfolding against the backdrop of an East Coast brought to its knees by last week's historically viol...

"Climate change is not a hoax," President Obama declared to a cheering crowd on Thursday night at the Democratic National Convention. Obama's decl...

The long drama of whether or not the US Congress would invest in international efforts to curb global warming pollution or gut these investments is finally over. There is good, OK and bad news.

WASHINGTON — President Barack Obama said Wednesday he will look for ways to control global warming other than placing a ceiling on greenhouse ga...

For many years, the lobbying fight for climate legislation on Capitol Hill has been led by a collection of the most corporate and moderate environmental groups. The result: total defeat, no moral victories. The time has come to get mad, and then to get busy.

President Obama used the occasion of his most recent weekly address to announce that the Department of Energy would make a $2 billion investment in two new massive solar energy projects.

Amidst the stolen email hoopla, one thing remains resoundingly clear: the manufactured scandal is part of a decades-long effort by special interests to discredit the work of climate scientists.

We have precious little time to deal with global warming before global warming deals with us. And the Senate Environment and Public Works bill is actually a good beginning.

If we think we're going to make the goal from solar, wind, and other renewables alone, we must be smoking something. Every clean power technology, including nuclear, has to play a role.