There's an article in this week's
New Yorker on Dubya's 'uneasy relationship' with science. It's only in the print edition, but there's an interesting Q&A with the reporter online
here.
The problem is not simply that Monkey Boy is Christ-Psychotic (although that's a factor):
"It’s not so easy to disentangle the Administration and the Christian right. The President is an evangelical Christian and so are many people in his Administration. On many issues, though, industrial lobbyists hold sway."