The joys of misrepresenting data
Good article, and a candidate for FoTW in its own right.
However you have slightly missed the climate point being presented by the nice graph on page 1.
The whole reason we have a climate change debate is because doing something about climate change is expensive, whilst not do something about climate change is essentially free (or at least the problem of some future generation to calculate). This is the explanation all of the red-state governers use to justify doing nothing about it.
But the graph is correct in that the ECONOMIC impact of climate change itself is either low (or massive, but incalculable in $ :-) )