But the atmosphere is a big place, and we're talking about a huge amount of carbon. Surface temperature records seem to show about 1 degree F of warming in the past century. How long have they been at it and at what cost to the american people. Mathematicians who have puzzled over arcane problems for centuries didn't expect to be giving birth to the world of computing and computer programming, but it happened. I don't know if Curt wants to add anything to this answer, but it's worth thinking about.
Some people think that several dozen million dollars for a single military plane is an outrage.
Many have university positions. Many are paid by the federal government, but do other kinds of work as well. To cite only one example, the National Center for Atmospheric REsearch in Colo. does a lot of global-warming analysis. But they also do a huge amount of research to assist forecasting and coping with weather phenomena such as El Nino. What fraction is specifically spent on global warming.