The moistening of planet Earth Despite CO2 increases, soil moisture is on the rise in most regions worldwide by Robert E. Davis Ph.D. General circulation models don't even scratch the surface when it comes to simulating climate. And we mean that literally.
Most models fail to properly account for moisture in the top portions of the soil.
Rutgers University Professor Alan Robock and a slew of international colleagues are in the process of assembling a global data set of soil moisture measurements. Their recent report of these trends in the latest issue of the Bulletin of the American Meteorological Society is yet another harbinger of the greener era to come. The trend in summer soil moisture for stations or regions with the longest records. All trends show moisture increases or no change. Those of you who have been following the global warming issue will hardly be surprised that many GCMs predict that summertime drying will accompany CO 2 increases.