Skeptics say humans not behind warming

NEW YORK, March 4 (UPI) -- Global warming skeptics are meeting in New York at a conference challenging the theory that humans are at fault for climate change.

Christopher Monckton of the Science and Public Policy Institute, University of Virginia professor emeritus S. Fred Singer and Virginia state climatologist Patrick J. Michaels are among the scientists attending the Heartland Institute's International Conference on Climate Change who argue recent climate change stems from natural causes, The Washington Post reported.

The New York Times described the Heartland Institute as a public policy research group "opposed to regulatory approaches to environmental problems."