For my country (Ukraine), the topic of carbon credits is not at all familiar. We just figured out the blockchain and mastered the cryptocurrency market. Hopefully, we will also be able to have a good project that will unite crypto and the struggle for a good ecology.
Carbon credit is a permit that allows a country or organization to produce a certain amount of carbon emissions and that can be traded if the full allowance is not used. (according to google)
This is one of the solutions that was created to reduce global carbon emissions and prevent dangerous climate change. However, carbon credits trading is complicated and difficult to track. Blockchain's being immutable and can be verified easily could create an opportunity for us to have a more liquid and more transparent trading market for carbon.
1 carbon credit represents 1 ton of real carbon.