Instead of wasting your time reading more of my burblings, head over to the 10:10 site, and sign up to the pledge to reduce your carbon footprint by 10% next year. Plenty of ideas on how to do it here. Climate change is real and it's already killing people.
If you're the creative sort, you could also join the Mass Visual Trespass (MVT) run by Christian Aid, who will be beaming our messages to world leaders at the Copenhagen Summit in December.
More links/info at Dave Walkers blog. Vid for anyone tempted to think they could do with more, rather than less, or for people who still have the attention span to read more than 3 short paragraphs on a blog, there's a cracking post/sermon at MadPriest, with facts and figures on poverty and wealth.