This dataset provides the annual voluntary carbon market transaction volume, value, and price for total traded carbon credits. In addition, it provides the cumulative issuances and retirements.As source mentioned, These data on voluntary carbon market dynamics come from EM’s database of voluntarily disclosed over-the-counter (OTC) carbon credit transactions, which are shared with EM by an international network of more than 180 “EM Respondents,” including project developers, investors, and intermediaries with headquarters in over 40 countries and representing carbon credit sales from thousands of nature-based and technological carbon projects in over 100 countries.Data on project registrations, credit issuances, and retirements come from the following project registries: ACR, CAR, CDM, City Forest Credits, Global Carbon Council, Gold Standard, Plan Vivo, and VCS.