Last week I wrote about a piece in Slate in which Brendan Borrell argued that concerns over the threat to biodiversity from global warming is overshadowing the bigger threat from habitat destruction. Brendan is back from a trip to South Africa and has left a lengthy–and well-considered–comment below. Definitely check it out. I still have some problems with his argument, but it’s so much more satisfying to discuss these issues with somebody who takes the scientific research seriously than someone who just wants to quote-mine.