Observational constraints on mixed-phase clouds imply higher climate sensitivity
2016; American Association for the Advancement of Science; Volume: 352; Issue: 6282 Linguagem: Inglês
10.1126/science.aad5300
ISSN1095-9203
AutoresIvy Tan, Trude Storelvmo, Mark D. Zelinka,
Tópico(s)Atmospheric and Environmental Gas Dynamics
ResumoA more sensitive climate system How much global average temperature eventually will rise depends on the Equilibrium Climate Sensitivity (ECS), which relates atmospheric CO 2 concentration to atmospheric temperature. For decades, ECS has been estimated to be between 2.0° and 4.6°C, with much of that uncertainty owing to the difficulty of establishing the effects of clouds on Earth's energy budget. Tan et al. used satellite observations to constrain the radiative impact of mixed phase clouds. They conclude that ECS could be between 5.0° and 5.3°C—higher than suggested by most global climate models. Science , this issue p. 224
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