Environment
- 401
 - Choose Climate
 - Interactive Java applet shows effects of policy on climate. Parameters include various per-capita emissions.
 
- 402
 - Forum for the Study of Crisis in the 21st Century
 - To analyse the nature of humankind's current crisis. Bringing together diverse academic and independent researchers in an independent research-based centre. Current programmes; climate change and violence, climate change and public opinion.
 
- 403
 - Global Change Impact Studies Centre
 - Details about objectives, manpower, news and events, and publications.
 
- 404
 - Joint Program on the Science and Policy of Global Change
 - Provides links to publications, personnel, forums, sponsor details, job openings and contact information. Based at Massachusetts Institute of Technology, USA.
 
- 405
 - The Tyndall Centre for Climate Change Research
 - UK-based interdisciplinary center seeks to engage with stakeholders and to explore and develop new technologies, lifestyles, economic instruments and regulatory mechanisms that will allow climate change to be managed.
 
- 411
 - Defenders of Wildlife
 - Organization dedicated to the preservation of all wild animals and native plants in their natural community. Provides action alerts and information.
 
- 414
 - Alliance for Zero Extinction
 - Initiative led by a group of biodiversity conservation organizations to identify and protect the last remaining habitats for the world's most endangered species.
 
- 416
 - The Deep Sea Conservation Coalition
 - A global coalition of conservation organisations calling on the United Nations General Assembly to secure a moratorium on high seas bottom trawling and to protect these fragile and unique pockets of life in the deep seas.
 
- 417
 - World Sturgeon Conservation Society (WSCS)
 - An international forum for scientific discussion about the protection of the species and habitat. Includes news, details of conferences and publications, discussion board, global data bank, and links to related sites.
 
- 418
 - Earth Witness Community
 - A memorial for species and places that have become extinct or disappeared because of humankind's expansion.
 
