Climate Knowledge

(with apologies to the original saying- see below)

A climate scientist is said to be a person who knows very little about a great deal and keeps knowing less and less about more and more until eventually he knows practically nothing about everything (particularly when you get rid of those pesky outliers in your data).

Whereas on the other hand, a politician is a person who knows a great deal about very little (and is happy to share that knowledge) and goes on knowing more and more about less and less until finally he knows practically everything about nothing.

The world starts out promised everything about everything, but ends up with nothing about anything, due to the Copenhagen Climate Conference (but still ends up with the bill anyway).