Does Global Warming exist?

If so, how has it been measured, observed, and proven?

The glaciers have been receding for hundreds of years. If you want to sell this shit come up with valid scientific proof (surveys and polls don't prove anything) duct tape the mouths of every actor, musician, and politician (anyone of whom would blow a donkey just to see their name in the paper) and present your evidence in a serious and straight forward manner.
Also by the way, any solution that calls for the US to stop anything while allowing the rest of the world while allowing the rest of the world to continue unabated and even increase whatever action you're pissing and moaning about this week is not going to fly.