The Mudcat Café TM
Thread #149044   Message #3479058
Posted By: Ringer
13-Feb-13 - 11:24 AM
Thread Name: BS: It's global warming, stupid!
Subject: RE: BS: It's global warming, stupid!
TIA, from your cite in posting at 11 Feb 13 - 12:37 PM - on p285, beginning of section 6: "To evaluate the climatic impacts of these pre-industrial greenhouse-gas increases, the following analysis uses the IPCC (2001) estimate of a 2.5C equilibrium sensitivity of global climate to a CO2 doubling."

Is this a serious scientific paper? Using IPCC (2001)? The IPCC reports have been discredited, based as they are mainly on "gray sources": that is, on literature from lobbyist groups with an ax to grind (lobbyist groups such as WWF, Greenpeace, FoE, etc). The current estimate is that climate sensitivity is about 1C, not 2.5. I couldn't work out what effect a smaller value of sensitivity would have on "the following analysis". (OK: perhaps I'm being too harsh on the authors of your 10-year-old cite, since the truly partial nature of IPCC & its reports have only really become well known in the last few years.)

But that's neither here nor there. There's at least as much evidence that, historically, temperature changes lead carbon dioxide changes as the reverse. Eg look at Wikipedia; not obvious there that CO2 is cause and temperature is effecxt, is there?

And