The Public and Climate
THIS IS THE TEXT OF AN ESSAY IN THE WEB SITE “THE DISCOVERY OF GLOBAL WARMING” BY SPENCER WEART, HTTP://WWW.AIP.ORG/HISTORY/CLIMATE. JULY 2007. HYPERLINKS WITHIN THAT SITE ARE NOT INCLUDED IN THIS FILE. FOR AN OVERVIEW SEE THE BOOK OF THE SAME TITLE (HARVARD UNIV. PRESS, 2003). COPYRIGHT © 2003-2007 SPENCER WEART & AMERICAN INSTITUTE OF PHYSICS. The Public and Climate Already in the 1930s, many people noticed that their weather was getting warmer. Few connected this with human activity, and still fewer feared any harm. Gradually scientists, aided by science journalists, informed the minority of educated people that modern civilization might cause global warming, sometime far in the future. In the early 1970s, the question began to concern a wider public. By then most people had come to fear planet-wide harm from technology in general. Now an onslaught of droughts suggested we were already damaging the climate. The issue was confused, however, when experts debated whether pollution would bring global warming or, instead, an appalling new ice age. By the end of the 1970s, scientific opinion had settled on warming as most likely, probably becoming evident around the year 2000—that is, in a remote and uncertain future. Some scientists nevertheless went directly to the public to demand action to avert the warming, and a few politicians took up the issue. During the hot summer of 1988, a few outspoken scientists, convinced by new evidence that rapid climate change might be imminent, made the public fully aware of the problem. Scientific discussions now became entangled with fierce political debates over scientific uncertainty and the costs of regulating greenhouse gases.
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