I believe that when the Alaskan Pipeline went in they had said that it would be devastating to the Caribou population. Thirty years later we have seen the effect it has on the Caribou. Walter Hickel, a former U.S. Sec of the Interior and Governor of Alaska said that the caribou herd has not only survived, but flourished. In 1977, as the Prudhoe region started delivering oil to America's southern 48 states, the Central Arctic caribou herd numbered 6,000; it has since grown to 27,128.They had found that it has helped the Caribou. There are now so many that they are a nuisance. The warmth that the pipeline gives off helps the caribou. I may be wrong but this is what I have heard from my brother-in-law also who use to actually live in Alaska not from some tree hugger person who has never been to Alaska or even seen caribou except on animal planet. Also I don't know where you got your facts on the amount of oil we would get but it is impossible to really tell how much oil is in the ground where they drill, they don't really know until they hit there depth and start pulling that pipe back out of the ground and wait for that black gold to come bubbling up through that drill pipe. Then they take samples of the oil and it can tell them how rich the oil is and what type of oil it is. And still then they can't tell you how long the oil well will last. Just putting in my two cents worth. No disrespect to anyone.