• 17 Videos, Slides, Films

• 17 Weather
• 14 Air
• 14 Climatic changes
• 12 Ecosystem management
• 7 Human ecology
• 6 Effect of human beings on
• 6 Nature
• 5 Conservation of natural resources
• 5 Diseases
• 4 Climatology
• 4 Lungs
• 4 Physical geography
• 4 Respiratory organs
• 4 Respiratory tract diseases
• 3 Ecology
• 3 Refuse and refuse disposal
• 3 Toxicology
• 3 Waste disposal
• 3 Water
• 2 Environmental aspects
• 2 Environmental chemistry
• 2 Environmental protection
• 1 Automobile industry and trade

• 17 Films Media Group
• 17 Films for the Humanities & Sciences (Firm)
• 4 DR TV (Television station : Copenhagen, Denmark)
• 2 ABC News Productions
• 1 4 Learning (Firm)
• 1 ABC International
• 1 Academic Media (Firm)
• 1 Allegro Productions (Firm)
• 1 BBC Worldwide Ltd
• 1 CCI Releasing, Inc
• 1 Cambridge Educational (Firm)
• 1 Clean Air Awareness Films
• 1 MasterSource
• 1 Video Education Australasia

• 17 English
• 1 Multiple languages

• 1 Bangladesh
• 1 South Asia

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