RB,
I don't think the election of a new governor could produce sufficient butterflies to prevent Hurricane Katrina from happening.
You'd need something sufficiently big enough to affect climate. Someone posted a scenario where Gore won in 2000 and funded a program to restore the marshlands in the Gulf, but that didn't prevent the hurricane from occurring, it just softened the impact (so the city didn't flood).
I don't think the election of a new governor could produce sufficient butterflies to prevent Hurricane Katrina from happening.
You'd need something sufficiently big enough to affect climate. Someone posted a scenario where Gore won in 2000 and funded a program to restore the marshlands in the Gulf, but that didn't prevent the hurricane from occurring, it just softened the impact (so the city didn't flood).