Leading insurers, hit by rising claims from "extreme" weather, signed up on Thursday to a list of green principles that they say will push the industry to help mitigate and better manage the risks of climate change... Thursday's pledges -- signed up to by giants from AIG to Zurich, and led by the UK trade body [Association of British Insurers] -- include the commitment to carry out more research on climate change, to develop improved risk analysis, to engage in public campaigns and the commitment to make customers greener by selling policies like "pay-as-you-drive" insurance, which encourages people to leave their cars at home. The insurers also agreed to incorporate climate change into investment strategies and to make their businesses greener.