• 18 Videos, Slides, Films

• 18 Ecological regions
• 14 Human ecology
• 9 Biology
• 9 Environmental degradation
• 9 Environmental quality
• 9 Life sciences
• 7 Human beings--Effect of environment on
• 5 Sociology
• 4 Biodiversity
• 4 Biotic communities
• 4 Cities and towns
• 4 Ecology
• 4 Social change
• 4 Study and teaching
• 2 Business enterprises--Law and legislation
• 2 Civil law
• 2 Effect of environment on
• 2 Human beings
• 2 Intellectual property
• 2 Justice, Administration of
• 2 Patents
• 1 Africa
• 1 Africa, Sub-Saharan

• 18 Infobase
• 8 Green Planet Films (Firm)
• 4 Media Policy Center (Firm)
• 1 BBC Worldwide Learning (Firm)
• 1 Green Interview (Firm)
• 1 Kwanza (Firm)
• 1 Mirror/Mirror Productions, Inc. (Firm)
• 1 PBS (Firm)
• 1 VEA (Firm)

• 17 English
• 1 Spanish

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