We will be posting key primary documents that have shifted the parameters of public debate, so that you can read the real thing here. First up is the Stern review on the economics of climate change, published in October 2006. The review showed how little it would cost to cut emissions sharply, and made the business case for acting now. The full executive summary is here. For the review, background and commissioned research, and reflections and responses since its publication, visit the treasury website.