We’ll ask them about that consensus

Earth with a thermostat

We hear repeatedly about an alleged overwhelming “consensus” of climate scientists who apparently all believe the same thing about the world’s climate. What, precisely, they all believe is not only undefined but also variable, according to whether we’re discussing human emissions of GHG, ocean acidification, the spread of malaria, the “loss” of polar ice caps, altered butterfly populations, extra floods, extra droughts, loss of polar bears, harm to poor people or dangerous sea level rise.

As, for example, in today’s story about NASA noticing a slight fall in sea level over the past year, where the reporter says, all wide-eyed and trusting:

The vast majority of climate scientists agree that the release of greenhouse gases Continue Reading →

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Consensus (not again!) and very uncertain models

In an editorial on 14 May, Nature calls on governments to “work together to build the supercomputers needed for future predictions that can capture the detail required to inform policy.”

They’re talking about the approximately fifteen detailed computer models developed by teams around the world in a continuing attempt to better understand earth’s complex climate. The modellers want access to supercomputers to help improve their predictions. Fair enough. Everybody wants bigger toys.

But along the way, this prestigious weekly manages some breathtaking assertions that deserve closer attention. Continue Reading →

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