Urbana/Champaign News-Gazette: Americans can fight global warming and its causes, but they’ll have to make some sacrifices to do so. That was the gist of the message three experts delivered during a Wednesday discussion about global warming and the public policy necessary to fight it. The conversation took place at the University of Illinois’ Beckman Institute, the sixth annual Craig S. Bazzani Lecture in Public Affairs. After experts gave 10-minute talks on their primary findings concerning global warming and the …