Uncertainty about the consequences of climate change makes it hard to persuade people to spend money on it, for where the damage is uncertain, so are the benefits of averting it. Yet uncertainty is also why mankind needs to take the problem seriously. (Continue to the article...)
They continue with a A special report on climate change and the carbon economy that has 11 articles giving overviews of the central issues in the debate. The articles on economist's views on climate change and the efficacies of climate change policy look particularly interesting--the issue would certainly make a great jumping-off point for group discussions.