Global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, global warming, and it's Bush's fault, of course.