Tim Lenton (University of East Anglia),Tim Lenton (The Tyndall Centre for Climate Change Research),Anthony Footitt (University of East Anglia),Andrew Dlugolecki (Andlung Consulting) 2009: Major Tipping Points in the Earth’s Climate System and Consequences for the Insurance Sector, <http://assets.worldwildlife.org/publications/386/files/original/Major_Tipping_Points_in_the_Earth's_Climate_System_and_Consequences_for_the_Insurance_Sector.pdf?1345749585>