On Monday night, Stephen Colbert spoke for many Americans when he said we have "stood with one voice and boldly proclaimed, 'Eh.'" He admitted to his viewers, "I know global warming is real," even if poll numbers of Americans concerned about environmental problems dropped between 2007 and 2011.If American CO2 emissions are so high, Colbert wondered, "Just think what those emissions numbers would be if America still made anything." He joked, "Right now it's all coming from hobo fires and Vin Diesel movies."Read More... More on Stephen Colbert