• 2 MERIT Library

• 1 Journals, Magazines, Newspapers

• 5 DVDs

• 163 Ecological regions
• 162 Pollution
• 151 Biotic communities
• 144 Environmental policy
• 140 Ecology
• 136 Environmental protection
• 133 Conservation of natural resources
• 125 Climatic changes
• 124 Biology
• 121 Biodiversity
• 118 Environmental law
• 108 Global warming
• 107 Air
• 100 Documentary films
• 100 Natural resources
• 89 Science
• 87 Life sciences
• 81 Study and teaching
• 68 Ecological zones
• 58 Water
• 55 Water use
• 48 Land use
• 48 Toxicology
• 46 Water-supply

• 642 Films Media Group
• 567 Infobase
• 212 Kanopy (Firm)
• 144 PBS (Firm)
• 74 Films for the Humanities & Sciences (Firm)
• 66 Green Planet Films (Firm)
• 42 BBC (Firm)
• 41 The Video Project (Firm)
• 32 Switch International
• 30 Film Ideas (Firm)
• 28 BBC Worldwide Learning (Firm)
• 26 Media Policy Center (Firm)
• 26 Roberts, Paul
• 26 World Wide Entertainment (Firm)
• 22 Van Dorslar, Marianne
• 17 Alexander Street Press
• 17 Canal Futura (Television station : Rio de Janeiro, Brazil)
• 17 DCGA Filmes
• 17 Giovanini, Dener
• 17 Levy, Joana
• 15 CNN (Firm)
• 15 TV Only SAS (Firm)
• 14 Annenberg Learner (Firm)
• 14 Green Interview (Firm)
• 13 Australian Broadcasting Corporation (Firm)

• 980 English
• 17 Portuguese
• 7 Spanish
• 5 Unknown
• 3 French
• 1 German
• 1 Indonesian
• 1 Malagasy
• 1 Tamashek
• 1 Thai

• 17 Brazil
• 15 Earth (Planet)
• 11 United States
• 9 Asia
• 6 Great Britain
• 5 North America
• 4 Africa, Sub-Saharan
• 4 U.S. states
• 3 Africa
• 2 Kenya
• 2 South Asia
• 1 Abū Ẓaby (United Arab Emirates)
• 1 Alaska
• 1 Antarctica
• 1 Arctic region
• 1 Arctic regions
• 1 Aspen (Colo.)
• 1 Australia
• 1 Barcelona (Spain)
• 1 California
• 1 Canada, Eastern
• 1 Central America
• 1 China
• 1 Eastern Canada
• 1 Europe

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