"Awarding it to Al Gore cannot be seen as anything other than a political statement. Awarding it to the IPCC is well-founded," said Bjorn Lomborg, author of "The Skeptical Environmentalist."

He criticized Gore's film as having "some very obvious mistakes, like the argument that we're going to see six meters of sea-level rise," he said.

"They (Nobel committee) have a unique platform in getting people's attention on this issue, and I regret they have used it to make a political statement."

This year, climate change has been at the top of the world agenda. The U.N. climate panel has been releasing its reports; talks on a replacement for the 1997 Kyoto Protocol on climate are set to resume; and on Europe's northern fringe, where the awards committee works, concern about the melting Arctic has been underscored by this being the International Polar Year.

Jose Manuel Barroso, president of the European Commission, said the prize would help to continue the globally growing awareness of climate change.

"Their contributions to the prevention of climate change have raised awareness all over the world. Their work has been an inspiration for politicians and citizens alike," he said in a statement.

In recent years, the Norwegian committee has broadened its interpretation of peacemaking and disarmament efforts outlined by Swedish industrialist Alfred Nobel in creating the prize with his 1895 will. The prize now often also recognizes human rights, democracy, elimination of poverty, sharing resources and the environment.

"We believe that the Nobel Committee has shown great courage by so clearly connecting the climate problems with peace," said Truls Gulowsen, head of environmental group Greenpeace Norway.

The Nobel Prizes each bestow a gold medal, a diploma and a $1.5 million cash prize on the winner.

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On the Net:

www.nobelpeaceprize.org