The EPA is trying to regulate atmospheric carbon dioxide as a pollutant, which is sheer stupidity. It is essential for healthy plant growth, and humans can live in an environment breathing ten times the current level of atmospheric CO2 with no negative health consequences.
Ask any submariner.
I think the EPA only discovered science yesterday, about the day after Al Gore did. Serious students of climate know that there have been at least six periods of greater warming in the past 15,000 years since the end of the Ice Age, and that current warmng is the weakest of the six. The greatest warm period recently was 8,000 years ago in the Holocene Optimum, and the following warming periods have steadily decreased in amplitude.
The latest warming hardly registers, even when compared to the Medieval Warm Period only 1,000 years ago. The only thing that makes it seem significant is that it comes right at the end of the Little Ice Age, the coldest period of the past 15,000 years.
Now we're in a state of lesser warming following greater cooling, which means that run-away warming is not what we need to worry about. Since warming didn't run away when atmospheric levels of CO2 were ten or more times the present, there is no reason to think it will in our current period of both low CO2 and temperature.
Unless your teacher of climate change was just born yesterday.
Will someone dry the wet behind Mr. Gore's ears?