As the other comment points out, some of the major GHG's CO2 and CH4 are comprised of carbon. It is often used as a catch-all.
For example, the news earlier this year about treeplanting, spoke about removing Carbon from the atmosphere. Typically, the GHG's will be rolled up into either CO2e (CO2-equivalent) or just C. In the latter case, you often just have to do some molar math to get the CO2e from C.
For example, the news earlier this year about treeplanting, spoke about removing Carbon from the atmosphere. Typically, the GHG's will be rolled up into either CO2e (CO2-equivalent) or just C. In the latter case, you often just have to do some molar math to get the CO2e from C.