The Stern Review is a report into the economic impacts of climate change and global warming on the world economy, and was compiled by economist Sir Nicholas Stern for the government of the United Kingdom. Released on October 30, 2006, and containing over 700 pages, the Stern Review is historically notable as being one of the first major government-sponsored reports on global warming conducted by an economist and not an atmospheric scientist.
Its main conclusions are that 1% of global GDP is required to be invested now to mitigate the effects of climate change, and that doing nothing now could risk a future recession worth up to 20% of global GDP.
Stern's report suggests that climate change threatens to be the greatest and widest-ranging market failure ever seen, and it provides prescriptions for how to minimise the economic and social disruptions. He stated that "our actions over the coming few decades could create risks of major disruption to economic and social activity, later in this century and in the next, on a scale similar to those associated with the great wars and the economic depression of the first half of the 20th century."
Full PDF of report from: http://www.hm-treasury.gov.uk/independent_reviews/stern_review_economics_climate_change/stern_review_report.cfm