hank of Gray, ME Exercise causes one to breathe more heavily, and exhale water vapor as well as sweating. Both release water vapor into the atmosphere. And water vapor is the #1 greenhouse gas in the atmosphere.

So ignore the doc; turn on the TV and grab another cool one to reduce your contribution to Global Warming.report abuse

andy of Portland, ME Dr. Wilk is entitled to his opinion, however, there are many very well qualified scientists who have examined the data and can find no evidence that carbon dioxide causes global warming. Not surprising considering the fact that the earth's climate has been warming and cooling for many thousands of years due to natural forces.

Applied Physicist and Engineer Dr. Jeffrey A. Glassman wrote an Oct. 24, 2006, paper entitled "The Acquittal of Carbon Dioxide." In the abstract of the paper appearing in Rocket Scientist's Journal, Glassman wrote, "Carbon dioxide in the atmosphere is the product of oceanic respiration due to the well known but under appreciated solubility pump. Carbon dioxide rises out of warm ocean waters where it is added to the atmosphere. There it is mixed with residual and accidental CO2, and circulated, to be absorbed into the sink of the cold ocean waters." Glassman further explained, "Next the thermohaline circulation carries the CO2?rich sea water deep into the ocean. A millennium later it appears at the surface in warm waters, saturated by lower pressure and higher temperature, to be exhausted back into the atmosphere." "Notwithstanding that carbon dioxide is a greenhouse gas, atmospheric carbon dioxide has neither caused nor amplified global temperature increases. Increased carbon dioxide has been an effect of global warming, not a cause. Technically, carbon dioxide is a lagging proxy for ocean temperatures. When global temperature, and along with it, ocean temperature rises, the physics of solubility causes atmospheric CO2 to increase. If increases in carbon dioxide, or any other greenhouse gas, could have in turn raised global temperatures, the positive feedback would have been catastrophic. While the conditions for such a catastrophe were present in the Vostok record from natural causes, the runaway event did not occur. Carbon dioxide does not accumulate in the atmosphere," he wrote.report abuse

Eric Ritter of Monmouth, ME Remind me to never go see this MD, he's cracked!

Hey doc! have you ever looked up in the sky? There's this bright yellow orb up there, it's called the Sun, it warms the Earth.

I agree that reducing wasteful habits and pollution are good things, but please don't wrap them in the religious cult of "global warming"!!report abuse