Subject categories
Climate, Environment, Natural Resources & Disasters → Air - Pollution
Climate, Environment, Natural Resources & Disasters → Environment - Social aspects
Climate, Environment, Natural Resources & Disasters → Environmental education
Climate, Environment, Natural Resources & Disasters → Pollution - Environmental aspects
Climate, Environment, Natural Resources & Disasters → Refuse and refuse disposal
Climate, Environment, Natural Resources & Disasters → Waste disposal - Environmental aspects
Climate, Environment, Natural Resources & Disasters → Water - Pollution
Communications, Infrastructure, & Transport → Refuse and refuse disposal
Communications, Infrastructure, & Transport → Waste disposal
Documentary
Documentary → Documentary films - United States
Economics, Philosophy, Politics, Religion & Sociology → Environment - Social aspects
Educational & Instructional
Educational & Instructional → Instructional
Short films
Short films → Short films - United States