Category Archives: Attribution

Root Cause Analysis of the Modern Warming

by Matt Skaggs

For years, climate scientists have followed reasoning that goes from climate model simulations to expert opinion, declaring that to be sufficient. But that is not how attribution works.

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Evidence of deep ocean cooling?

by Judith Curry

New research suggests that the upper layer of the ocean has warmed more than had been thought previously while the deeper ocean has cooled rather than warmed in recent years.

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Two contrasting views of multidecadal climate variability in the 20th century

by Judith Curry

Our new stadium wave paper is now published.

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JC at the National Press Club

by Judith Curry

I have just returned from my engagement at the National Press Club, sponsored by the Marshall Institute Roundtable.

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How long is the pause?

by Judith Curry

UPDATE:  comments on McKitrick’s paper

With 39 explanations and counting, and some climate scientists now arguing that it might last yet another decade, the IPCC has sidelined itself in irrelevance until it has something serious to say about the pause and has reflected on whether its alarmism is justified, given its reliance on computer models that predicted temperature rises that have not occurred.Rupert Darwall 

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Atlantic vs Pacific vs AGW

by Judith Curry

I hope this will lead to a broader discussion about the contribution of natural variability to local climate trends and to the statistics of extreme events. – John Michael Wallace

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The 50-50 argument

by Judith Curry

Pick one:

a)  Warming since 1950 is predominantly (more than 50%)  caused by humans.

b)  Warming since 1950 is predominantly caused by natural processes.

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