Its the price of global warming
The increased severity of Atlantic born hurricanes has been correllated with global warming:
Warming link to big hurricanes
By Helen Briggs
BBC News science reporter
Records for the past 35 years show that hurricanes have got stronger in recent times, according to a global study.
This fits with mounting evidence which suggests the biggest storms around the world - hurricanes, typhoons and cyclones - are intensifying.
Some US scientists say that greenhouse warming may be driving the most severe events, such as Katrina, although more research is needed to be sure.
Their assessment of hurricane activity is published in the journal Science.
More...
Its time Mr. Bush stop twiddling his thumbs, show some leadership and take affirmative action to slow the rise of green-house gasses. If we keep this up, the entire southern coast of the United States may become economically unhabitable. Here is the link to the Journal Science article: Is Katrina a Harbinger of Still More Powerful Hurricanes?