There's a great DVD out for those interested in climate change "The Great Global Warming Swindle". It discusses how climate change is a natural occurring feature of the planet and how we may be getting swindled by the incorrect science (now a industry in itself) of human CO2 emissions creating it.
Remember the computer Y2000 bug and the massive industry that spawned, all to be shot down in flames, as the risk effects were actually found to be negligible/almost non-existant, the costs then to businesses were enormous and there were very few documentated system problems found that had an effect from the date rollover.
Anyway back to the topic - the DVD goes on to show that very many of the world's leading climatologists do not believe CO2 causes the temperatures to rise. It is actually a lagger with ice records showing that CO2 increases with a 400 year lag to the actual temperature rising, as a result of the planets oceans emitting CO2 as it heats up (takes a long time). Plus all scientists agree that CO2 is only a very weak greenhouse gas, compared to greenhouse gases in the atmosphere, and makes up very much less than 1 % of the greenhouse gases in the atmosphere.
Anyway - for all those people on the human CO2 bandwagon - do some research before becoming a "me too / uni student / greenie with nothing better to do than be mad against the world protester" and find out some facts on the research that has been done. At the very least check out this DVD and realise that there is no weight to anything about human CO2 emission being a cause of climate change.
I am a member of Greenpeace and support many of their campaigns (anti-whaling, shale oil etc) but always weary jumping on a bandwagon with no science / logic supporting it (particularly when then is corrupted data tailored to fit a notion - how non-scientific is that = public fraud of the grandest scale). When this turns out to be the massive fraud as is starting to be acknowledged all those pushing it will have been much worse in their treatment/swindling of the public than even George Bush. Wonder if Al Gore is starting to fell like he has a hook in his mouth and the line is being played out -

Though he is making an absolute gazillion driving/being on the bandwagon.