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Politics : PRESIDENT GEORGE W. BUSH -- Ignore unavailable to you. Want to Upgrade?

To: J.B.C. who wrote (44555)	10/10/2000 10:32:27 AM
From: carranza2	Read Replies (1) \| Respond to of 769667

Don't be so facile and incomplete in your analysis. Did you read the rest of the story? "Water vapor is the predominant absorber of incoming solar radiation and a major contributor to the natural greenhouse effect. Scientists at the National Oceanic and Atmospheric Administration have reported that the atmospheric water vapor content in the stratosphere at mid-latitudes in the northern hemisphere has been increasing over the last 14 years [31]. Water vapor in the stratosphere can harm the ozone layer by stimulating the formation of polar clouds, which help pollutants such as oxides of nitrogen and halocarbons destroy ozone. At the tropopause, a rather distinct boundary between the troposphere and the stratosphere located at an altitude fluctuating around 15 kilometers, there is a sharp change in the concentration of water vapor (that is, the variation in concentration within the stratosphere is minimal) (Table 3). Lindzen and others [32] argue that water vapor between 2 kilometers (800 millibars) and 16 kilometers from Earth's surface (the tropopause) is the primary determinant of the greenhouse effect. However, Shine and others [33] argue that water vapor concentration in the lower troposphere is an equally important contributor to the greenhouse effect. Currently, it is believed that the impact of anthropogenic water vapor from the surface sources such as fuel combustion is minimal on the atmospheric water vapor concentrations." That means, does it not, that the effect of man-created water vapor as a green-house gas is minimal?