UPDATE 1-Reuters/Ipsos: More Americans believe world is warming
* 83 pct believe planet is warming, up from 75 pct
* Republican climate skeptics, record warming cause change
* 15 pct Americans say climate their top issue-professor
By Timothy Gardner
WASHINGTON, Sept 15 (Reuters) - More Americans than last year believe the world is warming and the change is likely influenced by the Republican presidential debates, a Reuters/Ipsos poll said on Thursday.
The percentage of Americans who believe the Earth has been warming rose to 83 percent from 75 percent last year in the poll conducted Sept 8-12.
U.S. Republican presidential candidates, aside from Jon Huntsman, have mostly blasted the idea that emissions from burning fossil fuels and other human actions are warming the planet.
The current front-runner, Texas Governor Rick Perry, has accused scientists of manipulating climate data while Michele Bachmann has said climate change is a hoax.
As Americans watch Republicans debate the issue, they are forced to mull over what they think about global warming, said Jon Krosnick, a political science professor at Stanford University. Continued...