Poll numbers aren't the only indicator that a "two Americas" of global warming perceptions persists. Just show up at any of the many debates going on about global warming between College Dems and Republicans at campuses across the country. Consider this report from the American Eagle, the daily newspaper here at American University. Or this recent story from the daily newspaper at the University of Washington. In these debates, the student Dems argue that human-created carbon emissions and other greenhouse gases are responsible for global warming and that the problem is urgent. Student Republicans argue that there is still no scientific consensus on the issue.