At the end of the year when the rainfall for all of the USA is
tabulated, it will probably come out as a figure of
30" average over the USA. So the reason that California and upper
MidWest are in a drought is because the
rainfall slated to go to these drought stricken regions was dumped off
in Texas, Oklahoma and Kansas. So
rainfall is very clearly a Zero-Sum parameter.

And we can go back in time to find where parts of the USA had severe
droughts and find where other
regions had way too much rain.

So what role does Global Warming have in rainfall? I believe its
greatest impact on rain is the Jet-Stream,
whereas the Jet-Stream before Global Warming had a very much larger
range and thus bringing rainfall
over larger land area. But with Global Warming intensifying, causes
the Jet-Stream to be more restricted in
range, and where it stays mostly far up north in Canada. Thus the
moisture from the Gulf waters is dumped
in Texas and nearby and never really makes it to the drought stricken
upper MidWest.

I am working on a physics model that imitates this Jet Stream pattern.

Archimedes Plutonium
www.iw.net/~a_plutonium
whole entire Universe is just one big atom
where dots of the electron-dot-cloud are galaxies