From comments in Doc Pielke's Blog
To follow the (un)logic cast about by the Goreists, the following statement should be accepted as a huge reason to embrace global warming - 30 million x 100 years = 3 billion.
In 2007 and 2008 there were riots in at least 2 dozen cities around the world over the rising price of food commodities that was at least partly to blame on diversion of food crops to biofuels.
The high price of these commodities also limited the amount of food that could be purchased to provide nutritional supplements to famine prone regions.
It is estimated that 30 million more people starved as a result. For some reason, the human toll and the environmental impact of “renewable” fuel and “green” solutions just gets a pass.