User talk:Tom Bolger

Global Dimming

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I have read the quoted article on Con Trails and Global Dimming but it only gives the diurnal range of temperature.It would have been more informative to have given the max and min temps.Then we could perhaps determine if con trails contribute to global warming.From my observation con trails disperse in sunlight and get thicker as the sun goes down.The moisture in con trails is still around at night and must condense as the air cools. This condensation will reflect heat, making the earth warmer.

Carbon dioxide

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In the past,the carbon dioxide content of the air went up as the earth warmed up and down as the earth cooled down.Low carbon dioxide did not cause the Ice Ages, rather the reverse.That is,an increase in the carbon dioxide content of the air was an effect of global warming not a cause.