At a summit this month, the world's wealthiest nations agreed to a goal of letting the global temperature rise no more than two degrees above pre-industrial levels. The G8 set a goal of reducing global emissions in half percent by 2050.
In its communique, the G8 cited the work of the U.N.'s Intergovernmental Panel on Climate Change, but today the chair of that panel said the world leaders "clearly ignored what the IPCC came up with" to reach those goals.
AP reports that Rajendra Pachauri said today that the G8's timeline is about 30 years too long. Pachauri said the G8 "should have also accepted" the panel's finding that greenhouse gas emissions must peak in 2015 and then decline between 25 percent and 40 percent by 2020.