re: 32 degrees at North Pole; Louisiana gulf waters rising?

I don't know what I expected, but the ignorance on this board is astonishing. The reason that scientist know that our recent warming is not a part of a natural cycle is its speed. Natural variations in our planets climate occur slowly over tens of thousands of years at the most extreme. The climatic changes we are observing are thousands of times faster than normal and the consequences include the disruption of ecosystems that cannot physically adapt to such rapid changes to the climate. The only natural sources that can cause such quick and dramatic changes to the climate are the sun, volcanic activity, or an asteroid impact-- and all of these have been ruled out.