Our current response to the "fever" and "infection" spreading through our own habitat is to allow the most ignorant and disingenuous of us to bully the rest of us to inaction. The level of scientific sophistication Romney and congressional Republicans are applying to the task is on a par with Garfield's doctors in 1881. You can't see CO2, therefore it must not be a problem. CO2 is natural, just like bacteria. Therefore, linking it to a climate crisis must be a hoax.