Since 1963, NOAA said the global temperature has increased at a rate of 0.27 degrees Fahrenheit a decade (0.15 degrees Celsius).

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Since then, the concentration of carbon dioxide has in fact increased and the mean temperature of the surface of the earth has increased in pretty much the way Dr. Arrhenius said it would.

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Such increased summer melting has an immediate local temperature effect, and it also will affect sea level.

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