WASHINGTON – A growing majority of Americans think global warming is occurring, that it will become a serious problem and that the U.S. government should do something about it, a new Associated Press-GfK poll finds.

Even most people who say they don't trust scientists on the environment say temperatures are rising.

The poll found 4 out of every 5 Americans said climate change will be a serious problem for the United States if nothing is done about it. That's up from 73 percent when the same question was asked in 2009.