Some believe that Global warming is caused by greenhouse gases in the atmosphere that trap radiation from the sun and keep it from being released back into space. Supporters of the theory point to the Antarctica, where the ice is melting at a rate of 15-20 centimeters a day and to Montana's Glacier National Park which now has only 27 glaciers, versus the 150 glaciers that existed in 1910. On the other hand, over 17,000 scientists have already signed a petition against there being evidence toward global warming. After reading our blog what is your stance on the theory--a hoax or a truth? What caused you to form your opinion?