Katrina and Global Warming

Katrina and Global Warming
An Associated Press article entitled "Katrina Reignites Global Warming Debate" echoes what many of us are asking. How much of this catastrophe can be blamed on human activities?
As a scientist, my first thought is that a single datum does not make a theory. But there is no question that this storm adds support to the idea that global warming will be very costly indeed. The fact that the Gulf of Mexico was running about one degree Celsius (one to two degrees Fahrenheit) warmer than normal was clearly a factor in Katrina's remarkably fast and severe development. We may be in a natural cycle that makes severe storms more common, but it is reasonable to surmise that the warmer climate is exacerbating that effect.

Courtesy : Science Blog.com