Climate Change -- How Bad?

I have focused on Peak Oil, but climate change aka global warming, is coming into play too. In the UK, The Observer has an article about the impact of climate change. It references the report by the Intergovernmental Panel on Climate Change. It appears that there is a growing consensus of just how bad things could get. I haven't read it all yet, but consider that climate change, peak oil and peak natural gas will all converge. Not a pretty picture taken together.