What one must realize first is that this is not a monolithic group with one unified set of goals. They have made an allaiance with very diverse goals.

First lets look at the extreme democrat/socialist left, these are largely the group that are sent to the global warming meetings all over the world. [Couldn't these meetings be done pollution free on skype]? That alone puts the lie to these organizations. One of the points they try to keep out of the press is the negotiations to tax the west bye the figure of approx. 100 billion a year that will be sent to the 3rd world to save them from global warming. In fact this is just cover for world wide international socialism. Then there is the simple fact that the debt in the US is sooooo high they are desperate for massive new sources of taxation to keep themselves afloat. And what better a form of taxation then we must save the world. Of course this must all be justified bye endless end of the world scare stories. Plus theres nothing that far left govts like more then a powerless populace and making them much poorer will certainly make them more submissive.
Now to put 100 billion a year in some corrupt organizations hands ie the UN passing it out to corrupt 3rd world govts would certainly guarantee massive kickbacks to those doleing it out, if no kick backee then no money to youu. Imagine a 100 billion dollar slush fund in the hands of the left elite [scumbag elite].

Now lets talk about the average green. They are True Believers, they are out to save the world. Just they never tell the ordinary joe that what they want to save the world from is THEM. And that those who are the chosen few who will survive will be the greens. Once you take a look at green literature you realize just how ruthless they intend to be if they get into power and they will make hitler mao and stalin look like chumps. An average figure they put the worlds population at that they like is 1 billion and that means 6 out of 7 people must be ummm deleted to put it nicely. That explains why the current head of the epa is happy that all epa regs put into effect will only reduce world temps bye .1 degree in the next 80 years, its not about pollution reduction its about human reduction. And that will just be the start. Lets not get into their positions on GMO and pesticides which if made illegal world wide would cause probably a billion to starve in the first year alone. And on and on it goes but like the left wing media lets not talk about what they really want to do and who is going to win and whos going to lose. /lets do like the left wing media and go out of our way to hide just what the greens want.

Theres a few points to start the ball rolling. The denials and insults will come fast and furious but just look up the big time greens and their writings and contrast that with their jet set, high pollution, anti green life styles. Man its just endless.