OSLO, Norway — Former Vice President Al Gore and the U.N.'s Intergovernmental Panel on Climate Change jointly won the 2007 Nobel Peace Prize Friday for their efforts to spread awareness of man-made climate change and to lay the foundations for fighting it.

Gore, who won an Academy Award earlier this year for his film on global warming, "An Inconvenient Truth," had been widely tipped to win the prize.

He said that global warming was not a political issue but a worldwide crisis.

"We face a true planetary emergency. ... It is a moral and spiritual challenge to all of humanity," he said. "It is also our greatest opportunity to lift global consciousness to a higher level."

The win is also likely add further fuel to a burgeoning movement in the United States for Gore to run for president in 2008, which he has so far said he does not plan to do.

Kenneth Sherrill, a political scientist at Hunter College in New York said Gore probably enjoys being a public person more than an elected official.

"He seems happier and liberated in the years since his loss in 2000. Perhaps winning the Nobel and being viewed as a prophet in his own time will be sufficient," says Sherrill.

Two Gore advisers, speaking on condition of anonymity because they are not authorized to share his thinking, said the award will not make it more likely that he will seek the presidency. If anything, the Peace Prize makes the rough-and-tumble of a presidential race less appealing to Gore, they said, because now he has a huge, international platform to fight global warming and may not want to do anything to diminish it.

One of the advisers said that while Gore is unlikely to rule out a bid in the coming days, the prospects of the former vice president entering the fray in 2008 are "extremely remote."

In its citation, the committed lauded Gore's "strong commitment, reflected in political activity, lectures, films and books, has strengthened the struggle against climate change. He is probably the single individual who has done most to create greater worldwide understanding of the measures that need to be adopted."

Ole Danbolt Mjoes, chairman of the prize committee, said the award should not be seen as singling out the Bush administration for criticism.

"A peace prize is never a criticism of anything. A peace prize is a positive message and support to all those champions of peace in the world."

Bush abandoned the Kyoto Protocol because he said it would harm the U.S. economy and because it did not require immediate cuts by countries like China and India. The treaty aimed to put the biggest burden on the richest nations that contributed the most carbon emissions.