Global Warming _ practical vs. theoretical proofs

Ladies & Gentlemen:

Last several weeks temperatures in the USA seem to be against Theory of Global Warming Created by Human Activities, specially the Technology. If there is really the event called Global Warning why millions of North American are freezing?

I have seen Al Gore's movie - well done (a good application of YouTube idea).

I was listening politicians running their campaigns with this topic to show how Global they are. I read some opinion in CR4 too. There are practically Opinions not solid theories even close to Einstein's.

There are some estimations that today human beings CANNOT significantly created such a phenomena.

For many years I was living inside Cybernetics and Un/Stability Controls. This bias forms my "opinion" that if there is some significant effect of mishandling energy balance created by Humanity it could create Unstable Waves of Temperature Over the Earth, and it is visible specially in countries with extremely high heat emissions. So amplitudes of these fluctuation are increasing, i.e. we are indicating higher temperatures in summer and lower in winter time.

Global temperature changes (having kinda sinusoidal function with its natural period of a year), in my recollection, have sources from outside (Sun, Galactic), internal (Central sphere of the Earth - with hot liquids of heavy metals - iron or maybe radioactive uranium inside lead? who knows?) as well as heating processes on the Earth surface.

Finally I am finding myself uncertain in the methods of measurements on so huge objects (measurements of weight, pressures, temperatures, heat transfer/flow etc.).

I know that I did not read all available dissertations on the subject, but those I absorbed in my mind, from scientists as well as some preachers having closer access to Universe Creator, do not clear my vision for future of the World and my elementary obligations to possible correction the Warming Output of presently running out of stability Planet.