''There is no convincing scientific evidence that human release of carbon dioxide, methane, or other greenhouse gases is causing (or will in the foreseeable future cause) catastrophic heating of the earth's atmosphere and disruption of the earth's climate. Moreover, there is substantial scientific evidence that increases in atmospheric carbon dioxide produce many beneficial effects upon the natural plant and animal environments of the earth.''
The carping of an oil-industry flack? The ignorant mutterings of fringe antienvironmentalists?
No. It is a petition signed by nearly 17,000 US scientists, half of whom are trained in the fields of physics, geophysics, climate science, meteorology, oceanography, chemistry, biology, or biochemistry. The statement was circulated by the Oregon Institute of Science and Medicine along with an eight-page abstract of the latest research on climate change. The abstract - written for scientists but comprehensible by laymen - concludes that there is no basis for believing (1) that atmospheric CO2 is causing a dangerous climb in global temperatures, (2) that greater concentrations of CO2 would be harmful, or (3) that human activity leads to global warming in the first place.
The cover letter accompanying the petition and abstract was penned by Frederick Seitz, a past president of the National Academy of Sciences. (All these documents are available online at
www.oism.org/pproject.) The scientific ''consensus'' on global warming, it turns out, does not exist.
The Oregon Institute petition is no anomaly.