climate change a matter of national security : Obama

President-elect Barack Obama said on Tuesday attacking global climate change is a "matter of urgency" that will create jobs as he got advice from Al Gore, who won a Nobel Peace Prize for his work on the issue.

In remarks to reporters, Obama made clear he would adopt an aggressive approach to global warming when he takes over the White House on January 20.

He and Vice President-elect Joe Biden met for nearly two hours with former Vice President Gore at Obama's presidential transition office in Chicago.

"All three of us are in agreement that the time for delay is over, the time for denial is over," Obama said.

Obama hopes addressing climate change can create the kind of jobs that will help pull the U.S. economy out of a deepening recession. He has begun to lay out plans for a massive recovery program to help stimulate the U.S. economy and create about 2.5 million jobs.

He said he would work with Democrats and Republicans, businesses, consumers and others with a stake in the issue to try to reach a consensus on a bold, aggressive approach to tackling the problem.

"This is a matter of urgency and of national security and it has to be dealt with in a serious way. That's what I intend my administration to do," Obama said.

Obama had a willing partner in Gore, who won a Nobel in 2007 for his years-long effort to educate people about the gradual warming of the planet and to argue against those scientists who believe a warming trend is a naturally occurring event.