Sachs on message

Back in April, I wrote to Jeffrey Sachs about his emphasis on climate change. He's come around to see the danger of peak oil, as per this latest Scientific American column of his:

The 15 billion barrels or so that is supposedly economically accessible in protected U.S. offshore sites would slake around 6 months of global demand (32 billion barrels per year, equal to 82 mbd times 365 days per year) in 2008, and of course a much smaller share by the time they reached the market in 10 to 15 years.