Category Archives: Attribution

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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Cause of hiatus found deep in the Atlantic Ocean

by Judith Curry

Rapid warming in the last three decades of the 20th century, they found, was roughly half due to global warming and half to the natural Atlantic Ocean cycle that kept more heat near the surface. When observations show the ocean cycle flipped, the current began to draw heat deeper into the ocean, working to counteract human-driven warming. – Chen and Tung

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Role of Atlantic warming(?) in recent climate shifts

by Judith Curry

Record breaking trade winds may have led to hiatus in global surface average temperatures.

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Disentangling forced from intrinsic climate variability

by Marcia Wyatt

Implications for the “stadium wave” and Northern Hemisphere climate variability.

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