News & CommentGlobal Change

The Hottest Year, By a Hair

Science  16 Jan 1998:
Vol. 279, Issue 5349, pp. 315-316
DOI: 10.1126/science.279.5349.315b

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Last week, government climatologists hailed 1997 as the warmest year of the century, citing it as another sign that greenhouse warming is real. But although the 1990s could end up as the warmest decade on record, computer climate models have called for the rising levels of greenhouse gases to be having a bigger effect on global climate. Reality may catch up with the models, however. By the turn of the century, researchers say, some factors that have slowed global warming so far will dissipate, and it will arrive in earnest.