Subject categories
Agriculture, Business, Commerce & Industry → Recycling (Waste, etc.)
Armed Forces, Military, War & Weapons → International understanding
Climate, Environment, Natural Resources & Disasters → Environment
Climate, Environment, Natural Resources & Disasters → Recycling (Waste, etc.)
Climate, Environment, Natural Resources & Disasters → Waste disposal - Environmental aspects
Communications, Infrastructure, & Transport → Recycling (Waste, etc.)
Communications, Infrastructure, & Transport → Waste disposal
Documentary
Documentary → Documentary films - United States
Economics, Philosophy, Politics, Religion & Sociology → Human ecology
Economics, Philosophy, Politics, Religion & Sociology → International cooperation
Economics, Philosophy, Politics, Religion & Sociology → International understanding
Educational & Instructional
Educational & Instructional → Instructional
Short films
Short films → Short films - United States