Re: Sleep is a Good Thing(TM)
Umm, you double the amount of CO2, you are back at the age of the dinosaurs - no ice anywhere and much higher sea levels. Me thinks you lack an understanding of how much the impact of even a 5% greater rise in CO2 will cause.
450 ppm (High risk): “The OECD Environmental Outlook to 2050: Key Findings on Climate Change” summarizes predictions by climate scientists’ models: we have a 50% chance of stabilizing the average global temperature at a 2°C increase over the pre-industrial period if we keep concentrations of CO2 under 450 ppm. A November 2013 report by PwC, Busting the carbon Budget, says that at our current rate of fossil fuel usage in the global economy, we will exceed that limit by 2034.
Add 2C increase, and global temps are high enough to create great changes in weather and sea levels. Doesn't sound like much, but ask people that live along the coast what that will mean - add say, 10ft to sea levels, no, make that 5 ft, and places like Bangladesh lose huge amounts of land. Cities like Miami, New York City, Shanghai, etc, lose big chunks too.
The US has a falling output of CO2 due to the swap from coal to natural (aka Freedom) gas, though that will be somewhat offset as nuclear plants close and are not replaced, forcing the use of more fossil fuels.
And natural gas (methane) has a thermal retention capacity of 30 times more than CO2, so as we shift to natural gas, and drill for natural gas, and the warming melts things like permafrost which allows the plant matter to decay and release methane, that impact has to be taken into account too.