Sunday, February 15, 2009

Firmly Believing What We Least Know

Like George Will, I remember that not too many years ago, the scientific ecological consensus was sure that we were on the verge of a catastrophic ice age:

In the 1970s, "a major cooling of the planet" was "widely considered inevitable" because it was "well established" that the Northern Hemisphere's climate "has been getting cooler since about 1950" (New York Times, May 21, 1975). Although some disputed that the "cooling trend" could result in "a return to another ice age" (the Times, Sept. 14, 1975), others anticipated "a full-blown 10,000-year ice age" involving "extensive Northern Hemisphere glaciation" (Science News, March 1, 1975, and Science magazine, Dec. 10, 1976, respectively). The "continued rapid cooling of the Earth" (Global Ecology, 1971) meant that "a new ice age must now stand alongside nuclear war as a likely source of wholesale death and misery" (International Wildlife, July 1975). "The world's climatologists are agreed" that we must "prepare for the next ice age" (Science Digest, February 1973). Because of "ominous signs" that "the Earth's climate seems to be cooling down," meteorologists were "almost unanimous" that "the trend will reduce agricultural productivity for the rest of the century," perhaps triggering catastrophic famines (Newsweek cover story, "The Cooling World," April 28, 1975). Armadillos were fleeing south from Nebraska, heat-seeking snails were retreating from Central European forests, the North Atlantic was "cooling down about as fast as an ocean can cool," glaciers had "begun to advance" and "growing seasons in England and Scandinavia are getting shorter" (Christian Science Monitor, Aug. 27, 1974).

Mr. Will's column in today's Washington Post is a must read for those interested in this subject. I am agnostic on the subject of global warming: I don't know. However, the galling moral certitude and strident rhetoric of those advocating for vast immediate changes for everyone but themselves is rather off putting to those thoughtfully trying to figure it all out.

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