Monday, March 22, 2010

When Not To Believe The Science Of Scientists

A December 18 Washington Post poll, released on the final day of the ill-fated Copenhagen climate summit, reported “four in ten Americans now saying that they place little or no trust in what scientists have to say about the environment.”Nor is the poll an outlier.

Several recent polls have found “climate change” skepticism rising faster than sea levels on Planet Algore (not to be confused with Planet Earth, where sea levels remain relatively stable).
Many of the doubt-inducing climate scientists and their media acolytes attribute this rising skepticism to the stupidity of Americans, philistines unable to appreciate that there is “a scientific consensus on climate change.” One of the benefits of the recent Climategate scandal, which revealed leading climate scientists manipulating data, methods, and peer review to exaggerate the evidence of significant global warming, may be to permanently deflate the rhetorical value of the phrase “scientific consensus.”
Even without the scandal, the very idea of scientific consensus should give us pause. “Consensus,” according to Merriam-Webster, means both “general agreement” and “group solidarity in sentiment and belief.” That pretty much sums up the dilemma. We want to know whether a scientific consensus is based on solid evidence and sound reasoning, or social pressure and groupthink.
Anyone who has studied the history of science knows that scientists are not immune to the non-rational dynamics of the herd. Many false ideas enjoyed consensus opinion at one time. Indeed, the “power of the paradigm” often shapes the thinking of scientists so strongly that they become unable to accurately summarize, let alone evaluate, radical alternatives. Question the paradigm, and some respond with dogmatic fanaticism.
We shouldn’t, of course, forget the other side of the coin. There are always cranks and conspiracy theorists. No matter how well founded a scientific consensus, there’s someone somewhere—easily accessible online—that thinks it’s all hokum. Sometimes these folks turn out to be right. But often, they’re just cranks whose counsel is best disregarded. Read more.

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