11 Jun 2013

Morning Belly Laugh

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Justin Gillis, in the magisterial New York Times, explains that climate science predictions of dramatic warming were wrong and climate scientists do not know why, but the failures of their theory don’t really matter. “More than a century of research thoroughly” proves that they are right.

It must be “natural variability” and the felicitous intervention of “deep ocean” cooling or the blocking of sunlight by air pollution in China or any of half a dozen explanations recently invented. But the basic science remains certain and established and agreed upon, even if none of its predictions have actually come through. One of these days, Gillis assures us, whatever is stopping the correct theory from working will just stop, and Sha-zam!, we will get: “an extremely rapid warming of the planet.”

Just keep believing.

As unlikely as this may sound, we have lucked out in recent years when it comes to global warming.

The rise in the surface temperature of earth has been markedly slower over the last 15 years than in the 20 years before that. And that lull in warming has occurred even as greenhouse gases have accumulated in the atmosphere at a record pace.

The slowdown is a bit of a mystery to climate scientists. True, the basic theory that predicts a warming of the planet in response to human emissions does not suggest that warming should be smooth and continuous. To the contrary, in a climate system still dominated by natural variability, there is every reason to think the warming will proceed in fits and starts.

But given how much is riding on the scientific forecast, the practitioners of climate science would like to understand exactly what is going on. They admit that they do not, even though some potential mechanisms of the slowdown have been suggested. The situation highlights important gaps in our knowledge of the climate system, some of which cannot be closed until we get better measurements from high in space and from deep in the ocean.

As you might imagine, those dismissive of climate-change concerns have made much of this warming plateau. They typically argue that “global warming stopped 15 years ago” or some similar statement, and then assert that this disproves the whole notion that greenhouse gases are causing warming.

Read the whole thing, and hold on to your chair as you laugh.

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2 Feedbacks on "Morning Belly Laugh"

Dr Dan H.

Remind me again how long people have been claiming that homeopathy was more than just water?

Something over a couple of hundred years is my guess; shouting that you’re right and the evidence is wrong can go on as long as you like, but reality always triumphs in the end.



nightspore

AGW is like HIV; it keeps mutating as it continues to attack society’s basic defenses.



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