Rain and Polar Ice Cover
I have been told that there will be a major
increase in rain, but I am not certain if it is weather all over
the world or just the common areas. Is this related to the vast
amounts of melting ice on the poles?
A consequence of global warming would be a slight
increase in water vapor in the air. This, plus likely
further drying of already dry regions (like deserts
and semi-arid areas) would shift more precipitation
to areas that already receive sufficient precipitation.
However, the increases in precipitation are likely to
be small, not a major increase.
David R. Cook
Climate Research Section
Environmental Science Division
Argonne National Laboratory
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Update: June 2012