Lots of little manuevers going on during this whole Iraq war ordeal. Bush single-handedly laid a below the belt blow to our environment and also helped to continue our dependence on oil as an energy resource.
Nope, he didn't open up ANWR (but you know its on his hit-list) but he did open up the similarly-sized Bristol Bay in Alaska. The fish-rich waters off the coast of our northernmost state was approved by Congress last month as one of its last acts. However, how quickly we forgot that those very waters of Bristol Bay were set aside and protected by the Congress in 1990 and re-opened in 2000 thanks to Alaska Senator Ted Stevens (R) "who argued that the area's oil and natural gas could be developed while still protecting the fisheries."
What are the effects of off-shore oil and gas drilling on fisheries, oceanlife and the water? For the purely academic version go here. For a more layman's explanation, go here. Regardless, should we be worried?