Target Atmospheric CO: Where Should Humanity Aim?

Hansen, James; Sato, Makiko; Kharecha, Pushker; Beerling, David; Berner, Robert; Masson-Delmotte, Valerie; Pagani, Mark; Raymo, Maureen; L. Royer, Dana; C. Zachos, James

doi:10.2174/1874282300802010217

Public

Target Atmospheric CO: Where Should Humanity Aim?

Published in The Open Atmospheric Science Journal • Oct 31, 2008

Authors:

James Hansen

Makiko Sato

Pushker Kharecha

Abstract

Paleoclimate data show that climate sensitivity is ~3°C for doubled CO2, including only fast feedback processes. Equilibrium sensitivity, including slower surface albedo feedbacks, is ~6°C for doubled CO2 for the range of climate states between glacial conditions and ice-free Antarctica. Decreasing ...

Subject

Environmental science

Climate change

Albedo (alchemy)

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