Dennis T. Avery | Earth about as hot as it was in 1900

But history says the CO2 doesn't matter much. Earth has had seven previous global warmings since the last Ice Age, and none of them involved burning fossil fuels.

The problem for voters in 2008 is that John McCain isn't much more realistic than Obama. McCain now approves of drilling "anywhere but ANWR (The Alaska National Wildlife Refuge)," but still believes that more human-emitted CO2 will mean dangerous global warming - even though CO2 has never demonstrated any correlation with our temperatures.

Both major candidates seem to have hired the Wizard of Oz as their energy consultant.