Relentlessly shrinking climate sensitivity estimates

Remember how all the news stories keep telling us the evidence is growing and getting stronger than ever “against the skeptics”?

David Stockwell has done a beautiful graph of the value of climate sensitivity estimates that of recent climate research that Steven McIntyre discussed in detail.

The trend looks pretty clear. Reality is gradually going to force itself on the erroneous models.

Indications are that around 2020 2030 climate sensitivity will hit zero. ;- )

The red line is ECS — Equilibrium climate sensitivity — which means after the party is all over in years to come, in the long run, this is how much the planet responds to a doubling of CO2.

The blue line is TCR — Transient Climate Response — is an estimate of what happens in the next 20 years. It’s a short term estimate.

Obviously the big question is: What happens when climate sensitivity goes negative?

Check out NicheModelling, Stockwell’s great blog, it deserves more attention.

h/t David, Lance, Ken

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