The carbon credit schematic below helps understand the mechanics, but the diagram does not sufficiently emphasize the critical importance of the “Verification and Validation” step. This is a great example of a mechanism that should work logically, but if the input is wrong the output will be also. Potential buyers and sellers of carbon credits understand the process well, but they are more concerned about what goes in the front end as the value of the credit will be very dependent on the quality. Today the only “sure thing” carbon offset is direct air capture, as all of the agriculture-based offsets need much tighter definitions. See research - Carbon Prices – Inequitable and Uncertain – Not What We Need
Source: NatWest, S&P Global Platts, December 2021