Why is the left so hysterical about global warming? It's because the "solution" is a perfect vehicle for what they believed all along - that western society's affluence, created by capitalism, is bad, and must be ended.
Every five years or so the UN has been holding their "Earth Summits." It's at these gatherings that they talk amongst themselves about how to reign in capitalism and save the planet. (Truly, they care not at all about saving the planet, they just want power.)
The 1992 Earth Summit in Rio de Janiero was chaired by a UN official named Maurice Strong. This was kind of the kickoff for the whole UN-led global warming issue. Until very recently, Strong was Executive Officer for Reform in the U.N. Secretary General’s office.
Here's what he said at the 1992 Summit, on the record: