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Is The Greenhouse Effect Just Hot Air?


In Business This Week

IS THE GREENHOUSE EFFECT JUST HOT AIR?

Ready for some good news, climatically speaking? Scientists at the National Oceanic & Atmospheric Administration have examined 40 years of temperature records from the U. S., the Soviet Union, and China. Conclusion: Dire warnings of sweltering heat from the "greenhouse effect" may be nothing but hot air. The reason: Almost all of the 1F or so increase in temperature during the last four decades occurred because of warmer nights, not hotter days. Researchers figure that could mean a couple of things. Perhaps computer models showing higher temperatures from the buildup of carbon dioxide are wrong. Or maybe the balmier nights aren't caused by a "greenhouse effect."EDITED BY G. DAVID WALLACE


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