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The climate won’t warm as much as we feared – but it will warm more than we hoped – Australian Times

A major new assessment has now calculated a range of 2.6–3.9℃. This implies that alarmingly high estimates from some recent climate models are unlikely.



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Steven Sherwood, UNSW; Eelco Rohling, Australian National University, and Katherine Marvel, NASA
We know the climate changes as greenhouse gas concentrations rise, but the exact amount of expected warming remains uncertain.
Scientists study this in terms of equilibrium climate sensitivity the temperature rise for a sustained doubling of carbon dioxide concentrations. Equilibrium climate sensitivity has long been estimated within a likely range of 1.5-4.5.
Under our current emiss…

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