Cascades, And The Rumor Mill

Today's New York Times, John Tierney makes a bold prediction: global warming hysterics will seize upon every weather anomaly that they can say proves their point and will completely ignore any event that does not fit their scenarios. In other words, business as usual for the global warming racket.

Today's interpreters of the weather are what social scientists call availability entrepreneurs: the activists, journalists and publicity-savvy scientists who selectively monitor the globe looking for newsworthy evidence of a new form of sinfulness, burning fossil fuels.

A year ago, British meteorologists made headlines predicting that the buildup of greenhouse gases would help make 2007 the hottest year on record. At year's end, even though the British scientists reported the global temperature average was not a new record - it was actually lower than any year since 2001 - the BBC confidently proclaimed, "2007 Data Confirms Warming Trend."

When the Arctic sea ice last year hit the lowest level ever recorded by satellites, it was big news and heralded as a sign that the whole planet was warming. When the Antarctic sea ice last year reached the highest level ever recorded by satellites, it was pretty much ignored. A large part of Antarctica has been cooling recently, but most coverage of that continent has focused on one small part that has warmed.

When Hurricane Katrina flooded New Orleans in 2005, it was supposed to be a harbinger of the stormier world predicted by some climate modelers. When the next two hurricane seasons were fairly calm - by some measures, last season in the Northern Hemisphere was the calmest in three decades - the availability entrepreneurs changed the subject. Droughts in California and Australia became the new harbingers of climate change (never mind that a warmer planet is projected to have more, not less, precipitation over all).

If you want to get the rumor mill going, you have to filter out any information that would be contrary. Today's drive by media does a wonderful job at hiding the truth.

When judging risks, we often go wrong by using what's called the availability heuristic: we gauge a danger according to how many examples of it are readily available in our minds. Thus we overestimate the odds of dying in a terrorist attack or a plane crash because we've seen such dramatic deaths so often on television; we underestimate the risks of dying from a stroke because we don't have so many vivid images readily available.

Slow warming doesn't make for memorable images on television or in people's minds, so activists, journalists and scientists have looked to hurricanes, wild fires and starving polar bears instead. They have used these images to start an "availability cascade," a term coined by Timur Kuran, a professor of economics and law at the University of Southern California, and Cass R. Sunstein, a law professor at the University of Chicago.

The availability cascade is a self-perpetuating process: the more attention a danger gets, the more worried people become, leading to more news coverage and more fear. Once the images of Sept. 11 made terrorism seem a major threat, the press and the police lavished attention on potential new attacks and supposed plots. After Three Mile Island and "The China Syndrome," minor malfunctions at nuclear power plants suddenly became newsworthy.

And that is the essence of leftists ideology. From DDT, to every other leftists scare that went bust, the same formulae is used. Tell the lie, tell it often enough and before long people will buy into it. Didn't someone else put this into action? Let me think, oh yeah, I got it -- It was George Goebbels, Hitler's propaganda minister. Good model to follow don't you think?

In his acceptance speech, Mr. Gore didn't dwell on the complexities of the hurricane debate. Nor, in his roundup of the 2007 weather, did he mention how calm the hurricane season had been. Instead, he alluded somewhat mysteriously to "stronger storms in the Atlantic and Pacific," and focused on other kinds of disasters, like "massive droughts" and "massive flooding."

"In the last few months," Mr. Gore said, "it has been harder and harder to misinterpret the signs that our world is spinning out of kilter." But he was being too modest. Thanks to availability entrepreneurs like him, misinterpreting the weather is getting easier and easier.

Read the rest here.