• 2 Wisconsin's Water Library
• 1 Steenbock Library

• 8 DVDs

• 15 Nature
• 10 Environmental aspects
• 5 Biodiversity
• 5 Ecology
• 5 Human ecology
• 3 Biodiversity conservation
• 3 Economic aspects
• 3 Environmental degradation
• 3 Environmental protection
• 3 Extinction (Biology)
• 2 Climatic changes
• 2 Deforestation
• 2 Description and travel
• 2 Ecosystem services
• 2 Environmental conditions
• 2 Environmental economics
• 2 Fishes
• 2 Global environmental change
• 2 Global warming
• 2 Overfishing
• 2 Ozone
• 2 Population
• 2 Sustainable fisheries
• 2 Tourism

• 4 Bullfrog Films
• 4 Video Project
• 2 ARTE France
• 2 Arcane Pictures (Firm)
• 2 Bergstrom, Kirk
• 2 Bowermaster, Jon, 1954-
• 2 Bridges, Jeff, 1949-
• 2 Calm Productions (Firm)
• 2 Cavanagh, Chris (Christopher)
• 2 Clover, Charles
• 2 Danson, Ted, 1947-
• 2 Dartmouth Films (Firm)
• 2 Delestrac, Denis, 1968-
• 2 Devorsine, Jean-Pierre
• 2 Duffield, George
• 2 Feydel, Sandrine (Journalist)
• 2 Icarus Films
• 2 Kucera, Susan
• 2 Murray, Rupert
• 2 Oceans 8 Films
• 2 Rangeland Productions (Firm)
• 2 Sukhdev, Pavan
• 2 Thomas, Kit
• 2 Via Découvertes Production
• 2 Vision Films (Marina del Rey, Calif.)

• 20 English
• 1 Austronesian (Other)
• 1 No linguistic content
• 1 Tok Pisin

• 2 Galapagos Islands
• 2 United States
• 1 Canada
• 1 Earth (Planet)
• 1 Everglades
• 1 Everglades National Park
• 1 Everglades National Park (Fla.)
• 1 Florida
• 1 New York
• 1 New York (State)
• 1 Papua New Guinea
• 1 Tauu Islands
• 1 Tauu Islands (Papua New Guinea)

• 17 Documentary films
• 14 Nonfiction films
• 6 Feature films
• 5 Video recordings for the hearing impaired
• 4 Short films
• 2 Educational films
• 1 Autobiographical films
• 1 Biographical films
• 1 Biography
• 1 Documentaries and Factual Films
• 1 Documentary
• 1 Documentary television programs
• 1 Ethnographic films
• 1 Film adaptations
• 1 Internet videos
• 1 Personal narratives
• 1 Television
• 1 Television programs

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