• 106 Videos, Slides, Films

• 50 Environmental aspects
• 45 Energy consumption
• 45 Energy development
• 45 Management
• 33 Energy conservation
• 32 Environmental sciences
• 31 Conservation of natural resources
• 16 Environmental protection
• 16 Pollution
• 14 Environmental policy
• 12 Water
• 10 Air
• 10 Climatic changes
• 10 Human ecology
• 10 Land use
• 9 Business ethics
• 9 Economic aspects
• 9 Effect of human beings on
• 9 Nature
• 8 Technology
• 7 Electricity
• 7 Government policy
• 7 Study and teaching

• 106 Films Media Group
• 78 Films for the Humanities & Sciences (Firm)
• 35 Infobase
• 8 Film Ideas (Firm)
• 7 Public Broadcasting Service (U.S.)
• 5 Canadian Broadcasting Corporation
• 5 Green Planet Films (Firm)
• 5 Video Education Australasia
• 4 Bloomberg LP
• 4 Open University
• 3 ABC International
• 3 ABC News Productions
• 3 Allegro Productions (Firm)
• 3 Cambridge Educational (Firm)
• 3 National Geographic Television & Film
• 2 Journeyman Pictures (Firm)
• 2 MVD (Firm)
• 2 Network Ireland Television (Firm)
• 1 4 Learning (Firm)
• 1 A&E Television Networks, LLC
• 1 Agency for Instructional Technology
• 1 Alda, Alan, 1936-
• 1 American Public Television
• 1 BBC Worldwide Ltd
• 1 CNN (Firm)

• 106 English
• 1 Multiple languages

• 6 Earth (Planet)
• 4 United States
• 3 Middle East
• 2 India
• 1 Alaska
• 1 Asia
• 1 Brazil
• 1 California
• 1 Developing countries
• 1 Former Soviet republics
• 1 Pacific Area
• 1 South Asia
• 1 United Arab Emirates

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