Example of a "Sustainable Insurer"
Cambridge Programme for Industry
http://www.cpi.cam.ac.uk/
Their Sustainability Research Digest I mentioned:
http://www.cpi.cam.ac.uk/resources/publications/sustainability_research_digest.aspx
United Nations Environment Programme Finance Initiative - see the various workstreams including climate change, insurance and investment:
http://www.unepfi.org/work_streams/index.html
Earthwatch have interesting expedition and educator programmes - http://www.earthwatch.org/.