• 1 Wisconsin's Water Library

• 8 Videos, Slides, Films

• 5 DVDs

• 4 Climatic changes
• 4 Global warming
• 3 Environmental policy
• 3 Environmental protection
• 2 Greenhouse effect, Atmospheric
• 2 Human ecology
• 2 Water-supply
• 1 Climatology
• 1 Conservation
• 1 Conservation of natural resources
• 1 Economic aspects
• 1 Emigration and immigration
• 1 Endangered ecosystems
• 1 Environmental conditions
• 1 Environmental responsibility
• 1 Films for the hearing impaired
• 1 Grassland ecology
• 1 History
• 1 Lake ecology
• 1 Lake restoration
• 1 Management
• 1 Ozone layer depletion
• 1 Pests
• 1 Political aspects

• 3 Bullfrog Films
• 2 Actual Films
• 2 Berge, Richard
• 2 Cohen, Bonni
• 2 Gore, Al, 1948-
• 2 Paramount Pictures Corporation
• 2 Participant Media
• 2 Shenk, Jon
• 2 Skoll, Jeff
• 2 Weyermann, Diane
• 1 Achbar, Mark
• 1 Aichinger, Thomas
• 1 Audio Network Plc
• 1 Barlow, Maude
• 1 Beal, Jeff, 1963-
• 1 Bernier, Don, 1970-
• 1 Bertolini, Hannes
• 1 Big Picture Media Corporation
• 1 Bozzo, Sam, 1969-
• 1 CanWest Global Communications Corp
• 1 Clarke, Tony, 1944-
• 1 Documentary Channel (Television network : Canada)
• 1 Dorst MediaWorks, Inc
• 1 Dorst, Steve
• 1 Downie, Gordon, 1964-2017

• 8 English
• 2 French
• 2 Spanish
• 1 Gilbertese
• 1 Slovak
• 1 Undetermined

• 4 United States
• 1 Great Lakes (North America)
• 1 Great Plains
• 1 Kiribati

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