Here is a bizarre little fact about water; Weak magnetic fields (15 mT) have also been shown to increase the evaporation rate. [L. Holysz, A. Szczes and E. Chibowski, Effects of static magnetic field on water and electrolyte solutions, J. Coll. Interface Sci. (2007) Article in press, doi:10.1016/j.jcis.2007. 08.026..]
And we know that the earth’s magnetic field is weakening prior to the field reversing;
If water evaporates better in low magnetic fields you would expect more droughts as the earth’s magnetic field weakens.
Drought's Growing Reach:NCAR Study Points to Global Warming as Key Factor
January 10, 2005
BOULDER- The percentage of Earth's land area stricken by serious drought more than doubled from the 1970s to the early 2000s, according to a new analysis by scientists at the National Center for Atmospheric Research (NCAR). Widespread drying occurred over much of Europe and Asia, Canada, western and southern Africa, and eastern Australia. Rising global temperatures appear to be a major factor, says NCAR's Aiguo Dai, lead author of the study.
January 10, 2005
BOULDER- The percentage of Earth's land area stricken by serious drought more than doubled from the 1970s to the early 2000s, according to a new analysis by scientists at the National Center for Atmospheric Research (NCAR). Widespread drying occurred over much of Europe and Asia, Canada, western and southern Africa, and eastern Australia. Rising global temperatures appear to be a major factor, says NCAR's Aiguo Dai, lead author of the study.
Would more evaporated water in earth's atmosphere produce a warming blanket?
Maybe it isn’t cosmic rays condensing water with their passing, but simply more water evaporating due to a weakening magnetic field.