• 74 Videos, Slides, Films

• 73 Biology
• 30 Environmental degradation
• 30 Environmental quality
• 30 Human ecology
• 24 Ecological regions
• 22 Biodiversity
• 20 Conservation of natural resources
• 20 Effect of environment on
• 20 Environmental law
• 20 Environmental policy
• 20 Environmental protection
• 20 Human beings
• 18 Zoology
• 16 Biotic communities
• 16 Ecology
• 14 Animals
• 13 Pollution
• 12 Endangered ecosystems
• 12 Endangered species
• 10 Air
• 10 Climatic changes
• 10 Global warming
• 10 Human beings--Effect of environment on

• 74 Films Media Group
• 74 Infobase
• 22 Green Planet Films (Firm)
• 14 BBC (Firm)
• 12 PBS (Firm)
• 3 Australian Broadcasting Corporation (Firm)
• 3 Classroom Productions. Inc (Firm)
• 3 Kwanza (Firm)
• 3 Looking Glass International (Firm)
• 2 Cerebellum Corporation (Firm)
• 2 Inside Science (Firm)
• 2 Network Ireland Television (Firm)
• 1 ABC NEWS (Firm)
• 1 Allied Environmental Services Australia Pty Ltd (Firm)
• 1 BBC Worldwide Learning (Firm)
• 1 CNN (Firm)
• 1 Intelligence Squared US (Firm)
• 1 Java Films (Firm)
• 1 NewsHour Productions LLC (Firm)
• 1 Off the Fence Productions

• 73 English
• 1 Spanish

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