Campaign for the Protection of Rural England http://www.cpre.org.uk/home
The Corner House http://www.thecornerhouse.org.uk
Down to Earth http://www.downtoearth.org.in/
Forest Peoples Programme http://www.forestpeoples.org/
Greenpeace UK http://www.greenpeace.org.uk/
The Institution of Environmental Sciences http://www.ies-uk.org.uk
John Muir Trust http://www.jmt.org/home.asp
Rainforest Foundation UK http://www.rainforestfoundationuk.org/s-Index
Town and Country Planning Association http://www.tcpa.org.uk/
RSPB (Royal Society for the Protection of Birds) http://www.rspb.org.uk/
Institute of Environmental Management and Assessment http://www.iema.net/
The Wildlife Trusts http://www.wildlifetrusts.org/
Worldforests http://www.worldforests.org/
World Wildlife Foundation http://www.worldwildlife.org/
CECB http://www.bu.edu/cecb/default.html
The following list are government departments or agencies devoted to monitoring and protecting the environment:
Association for Environment Conscious Building http://www.aecb.net/
English Heritage http://www.english-heritage.org.uk/
Friends of the Earth Scotland http://www.foe-scotland.org.uk/
Natural England http://www.naturalengland.org.uk/
Environment Agency (England & Wales) http://www.environment-agency.gov.uk/