...it is fairly well agreed that the surface temperature will rise about 1ยฐC as a modest response to a doubling of atmospheric CO2 if the rest of the component processes of the climate system remain independent of this response.
John ChristyI've often heard it said that there's a consensus of thousands of scientists on the global warming issue and that humans are causing a catastrophic change to the climate system. Well I am one scientist, and there are many that simply think that is not true.
John Christy[W]e are not morally bad people for taking carbon and turning it into the energy that offers life to humanity in a world that would otherwise be brutal (think of life before modernity). On the contrary, we are good people for doing so.
John ChristyThere is no doubt there is more carbon dioxide in the atmosphere, caused by the burning of fossil fuels. It should have an effect on the climate, but the numbers indicate that effect is relatively minor.
John Christy