• 16 Study and teaching
• 13 Environmentalism
• 3 Science
• 2 Aids and devices
• 2 Education
• 2 Finance
• 2 Teaching
• 1 Agricultural ecology
• 1 Bicycle commuting
• 1 Conservation biology
• 1 Conservation of natural resources
• 1 Design and construction
• 1 Energy conservation
• 1 Environmental economics
• 1 Interdisciplinary approach in education
• 1 Local foods
• 1 Plants
• 1 Recycling (Waste, etc.)
• 1 Renewable energy sources
• 1 School budgets
• 1 School children
• 1 Schools
• 1 Study and teaching (Secondary)
• 1 Surfrider Foundation

• 8 Maverick Television (Television network)
• 3 Brook Lapping Productions
• 2 ITV (Firm)
• 2 Television Junction
• 1 Black Diamond
• 1 Bloom, Leslie
• 1 Higgins, Marilyn
• 1 Illumina Digital
• 1 Independent Television News (Great Britain)
• 1 Lambent Productions
• 1 Real Life Productions

• 24 English

• 9 Great Britain
• 2 Tanzania
• 1 Australia
• 1 England
• 1 Philippines
• 1 Sweden

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