You don't know that, and no one else does either.
The term "100 year storm" means nothing when you consider the change
in population over that 100 years.
In general, yes, when the earth warms the capacity for holding water
vapor increases. But your implication that this pinpoints the *cause*
of the warming that has been occurring for 150+ years is utter poppycock.
Again, most thinking people believe humans have caused some change to
the climate. The question is "how much?" And the best scientific minds
in the world can't determine that. And unlike the insinuations of the
left, they don't claim to have determined that beyond doubt, either.
Not that you'll get a leftist to be intellectually honest and
volunteer that. No, instead they'll try and imply that it's all
because the evil right won't spend a trillion dollars to reduce the
world's temperature by .012C over the next 30 years.
--
The longer I live, the more I realize the impact of attitude on my
life. ... I am convinced that life is 10% what happens to me and 90%
how I react to it. And so it is for you... we are in charge of our
attitudes. -- Charles Swindoll