Leading insurers globally are lagging in addressing climate, biodiversity and social risks despite growing threats from global warming, according to a new report by responsible investment NGO ShareAction, supported by WWF. The fourth edition of the Insuring Disaster benchmark assessed 40 of the world's largest property and casualty insurers and found that most received poor grades for their climate-related policies. Allianz and Achmea were the only insurers to receive a B rating.