1. A market-based trading scheme for rights to emit greenhouse gasses that contribute to global warming
   - emission trading scheme

Encyclopedia: ETS

• cardiovascular disease
• cardiovascular system
• carditis
• Cardium
• Cardium edule
• Cardizem
• cardoon
• cardroom
• cards
• cardsharp
• cardsharper
• Carducci
• Carduelinae
• Carduelis
• Carduelis cannabina
• Carduelis carduelis
• Carduelis cucullata
• Carduelis flammea
• Carduelis hornemanni
• Carduelis spinus
• Cardura
• Carduus
• Carduus crispus
• Carduus nutans
• cardy