• 6 Videos, Slides, Films

• 5 Ecosystem management
• 5 Physical geography
• 4 Air
• 4 Biodiversity
• 4 Ecology
• 4 Marine biology
• 4 Marine ecology
• 4 Marine organisms
• 4 Pollution
• 4 Population
• 2 Tara (Yacht)
• 1 Biodiversity conservation
• 1 Climatology
• 1 Marine biodiversity
• 1 Oceanography
• 1 Refuse and refuse disposal
• 1 Research
• 1 Taiga ecology
• 1 Toxicology
• 1 Waste products
• 1 Water
• 1 Weather

• 6 Films Media Group
• 4 Ampersand Film & Video Tape Productions
• 1 Academic Media (Firm)
• 1 American Museum of Natural History

• 6 English

• 6 Educational films
• 6 Internet videos
• 6 Videorecording

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