Tree ring data from the Canadian arctic show a 3 deg. We should also expect the seas to rise a few inches, first because seawater will expand as it gets warmer, and secondly because ice will flow off the land and melt. Some aspects of global warming are not often discussed. For example, the secondary consequences of heat waves, droughts, and storms. At the height of the flood, according to USGS, the river was carrying 12,000 pounds of atrazine per day past Thebes, Illinois, where the agency took measurements.
Unusual weather brings many unexpected side-effects.
Drought affects human health as well. The IPCC in 1994 estimated that global warming is likely to have its severest impacts on humans by diminishing agricultural output and making food scarce. Shifting climatic zones northward will increase the arid zones and thus diminish the land available for crops. Rising seas will cover much good farmland, further reducing available croplands. Jeremy Leggett, TIME BOMB, cited above, pg.