There is a serious tendancy these days to blame everything that happens on either Global Warming or George Bush. Well, some blame Bush for everything. The Global Warming dogma involves a confirmation bias. Everything bad regarding climate is blamed on global warming. Al Gore blamed hurricane Katrina on global warming, and Bush for causing global warming. Cooler heads are now pointing out that global warming, should it happen, will result in less severe weather. This is borne out by a check of Earth's climate history. The weather was mild during the Medieval Warm Period, and got more severe with the onset of the Little Ice Age. I recently read that global warming is causing the extinction of species in the tropical forests. It amazes me that an increase of one degree Fahrenheit in the average Earth temperature could have such an effect, particularly since the increase is mostly at higher latitudes, and the annual spread in temperatures in the tropics is at least 40 degrees Fahrenheit. It seems obvious to me that blaming global warming is convenient, and will likely generate some research funding, but there is almost certainly some other cause.