Carbon pricing mechanisms in operation worldwide 2024, by type
There were 75 carbon pricing mechanisms in operation worldwide as of April 1, 2024, covering roughly 13 billion metric tons of carbon dioxide equivalent. These comprised 39 carbon tax initiatives and 36 Emissions Trading Systems (ETS). 13 ETS were national initiatives, while 23 were sub-national initiatives, such as the RGGI in the U.S. The only regional ETS in place was the EU ETS. The number of operating carbon pricing mechanisms has increased considerably in recent years.