Pricing Carbon – World Bank www.worldbank.org/en/programs/pricing–carbon World Bank There are two main types of carbon pricing: emissions trading systems (ETS) and carbon taxes. An ETS – sometimes referred to as a cap-and-trade system – caps the total level of greenhouse gas emissions and allows those industries with low emissions to sell their extra allowances to larger emitters. Reference What is carbon pricing? Carbon Pricing Websites — Pro Carbon Price Carbon