ny times article

http://www.nytimes.com/2006/10/30/business/worldbusiness/30energy.html?hp&ex=1162270800&en=0aec92e4764ed849&ei=5094&partner=homepage

"Most of these experts also say existing energy
alternatives and improvements in energy efficiency are
simply not enough.

"We cannot come close to stabilizing temperatures"
unless humans, by the end of the century, stop adding
more CO2 to the atmosphere than it can absorb, said W.
David Montgomery of Charles River Associates, a
consulting group, "and that will be an economic
impossibility without a major R.& D. investment.""