The left of 1960: We can't put a man on the moon for 10 years so lets get started.

The left of 2008: We can't tap that oil for ten years so what is the point.

I guess they assume we will all be dead from global warming by then so no need for the oil.

If Kugman is so smart, why dosen't he get George Soros to quit funding Obama under the table and invest in alternative energy. With his billions soros couls put a solar powered wind mill in every drive way. Subsidies don't work. They encourage inefficient solutions and drive efficient solutions out of the market. See ethanol.