I honestly don't care about Global Warming - rather, totally aside from my personal opinions about it I don't care for the massive hype around it, or for the the biased arguments for and against it by various people, many of whom either have a vested material interest in denying climate change or in ramping up the fear factor about it. Really, I don't. Here's why:
If we humans are indeed responsible for the various extremes of climate that seem to be on the rise at the moment, it will have presumably taken decades of our wastefulness to produce such extremes and the effects cannot be mitigated in a human lifetime. We cannot do anything immediate (in human terms) about it - if anything it will take a concerted, decades-long effort by the entire species to reduce our wasteful, planet-disrespecting habits. Most of us would be dead by the time anything positive that could be ascribed to our actions even happened (which would, of course, not even be close to a good reason to do nothing).
If we're not responsible for climate changes and it's more a natural function of century or millenia-long weather cycles that we have yet to fully understand but our actions are provably exaggerating climate extremes, see my first answer! It would have taken the better part of two centuries to get to this point we are and it will not be solved in a short human timespan. It still doesn't mean that going along in a normal wasteful pattern is acceptable.
If climate change is completely natural and we're not affecting the climate at all (which seems quite unlikely considering the crap we spew into the air by the billions of tonnes) we should still start acting like this is the only planet in the universe that can support us, because it bloody well is and a change in how humans produce, consume and dispose of waste is many, many decades overdue.
So screw the hype and don't listen to the talking heads from either side (yes, even scientists can take sides). Change your ways if only to save yourself some cash. Just turn off your freakin lights when you're not in a room! Don't paint a stupid sign, bang a drum and "March Against Climate Change" and get on telly chanting slogans (ridiculous, marching against a global climatic phenomenon, as if anyone actually has the power to "stop" it like it's some half-baked government policy), just walk to work or take a train. Lead by example and encourage others to be a bit more careful. Suck your pride in and leave your car at home if you don't really need it, even if it's just one or two days a week. Sheesh, just use less everything because you know you can afford to. Many millions of people get along with a tenth of the resources we well-off Western Hemisphere/Euro-descended people deal with.
Screw Al Gore's movie and whatever holes people want to pick in it. Do something because you know it's right, not because someone told you to (that includes me - if you think I'm wrong about any of this, tell me to stick it while you inhale some aerosol cheese and drive your Hummer to pick up your 120" energy-sucking plasma tv).