Here's a comment I just posted in Care2 under the article:
The question of climate change comes down to probabilities and balancing risks versus benefits. My understanding of the IPCC predictions is there is a 2/3 chance that things will get very bad by the end of this century. The far end of the bell curve is a one-in-six chance of conditions becoming catastrophic.
The climate change deniers seem to focus on the near end of the curve, the one-in-six chance that things won't be too bad after all. A gun with one empty chamber and five bullets is not very good odds if you're going to play Russian roulette.
Climate scientist James Hansen has called for a global carbon tax with the proceeds to be distributed to everyone (he calls it fee-and-dividend). I have posted a petition calling for a worldwide referendum on such a global carbon tax on Care2. You can view it and,hopefully, put your name to it, at http://www.thepetitionsite.com/286/384/042/petition-for-a-referendum-on-a-global-carbon-tax/