Advancing glaciers are NOT evidence of global warming. Glaciers advance toward the sea because increased snowfall makes them heavier at the top and pushes them out at the sides. Earths circumfrence at the poles is 24,860 miles. Now you say Co2 is causing global warming. My god. do you have any idea how much co2 it would take to melt the poles? the Ionosphere is over 50,000 miles so, you are saying all of this gas is trapped up there and then the heat Lowers to the poles. hhhm. Again, 3rd grade science will teach you that heat "rises" what is the matter with you? What part of that don't you get? You are saying that there is sooooo much co2 that it pushes it's way back down to the poles 50,000 miles, don't dissapate and still heats that ice on the caps. No wonder there are so many confused people on this site. You muck up the info w/ bullshit. So, while you are at work behind your cash register eating your pop corn, do the math. Oh, and another thing. The earths "releases" its energy through volcanic eruptions and there hasn't been any in days. I hope you, who like to "muddy up" people's thinking lives in the cascadia subduction zone. heh.