AL GORE

Nobel Prize winning physicist Ivar Giaever resigned as a Fellow from the American Physical Society (APS) on Tuesday, condemning the group's official stand on global warming. In 2007, APS adopted an official statement on global warming, which said that the emissions of greenhouse gases from human activities are changing the atmosphere in ways that affect the Earth's climate.

During every presidential campaign season, a number of underdog candidates decide to run for the White House – most of whom have no hopes of ever getting elected.

While some who question manmade climate change accuse environmentalists of harboring a covert socialist agenda, some advocates claim the label proudly.

Al Gore is renewing his campaign to convince sceptics of the link between climate change and extreme weather events by means of a global multimedia event.

Former U.S. Vice President, Al Gore, will undertake a 24-hour global multimedia event to convince deniers of humans' role in climate change, the link between climate change and extreme weather events and to drive action against global warming among the public.

With his approval rating at a term-low 40 percent, President Barack Obama needs several factors to break his way to improve his chance for re-election in 2012 -- the most important of which is job growth.

Al Gore is renewing his campaign to convince sceptics of the link between climate change and extreme weather events by means of a global multimedia event.

Climate change advocate and former Vice President, Al Gore, will undertake a 24-hour global multimedia event to convince the climate change deniers of humans' role in climate change, the link between climate change and extreme weather events and to drive action against global warming among the public.

Starting on Wednesday, The Climate Reality Project will broadcast a new 24-hour global multimedia presentation on the link between global warming and extreme weather events.

Former Vice President Al Gore will renew his 30-year campaign to convince skeptics of the link between climate change and extreme weather events this week in a 24-hour global multi-media event.

Former President Al Gore will renew his 30-year campaign to convince skeptics of the link between climate change and extreme weather events this week in a 24-hour global multi-media event.

In 1987, Paul temporarily resigned from the Republican Party.

Texas Governor Rick Perry came out swinging in his national debut on Wednesday, all but calling President Barack Obama a liar, describing Social Security as a fraud and attacking his main Republican rival in the presidential race.

Texas Gov. Rick Perry came out swinging in his national debut on Wednesday, all but calling President Barack Obama a liar, describing Social Security as a fraud and attacking his main Republican rival in the presidential race.

Republican presidential candidates met at the Ronald Reagan presidential library in Simi Valley, California, on Wednesday for a televised debate.