Since it is neither possible to fully stop greenhouse gas emissions or absorb all of them back, they just keep their promise by buying carbon credits. What factors prevented the carbon markets from evolving? In time, they were able to agree upon all but the carbon markets. As they gathered again in Glasgow, there were three major issues relating to the carbon market. First, whether or not the old carbon credits (certified carbon emissions, or CERs) issued under an earlier regime — the Clean Development Mechanism of the Kyoto Protocol — are still valid.
Source: The Hindu November 29, 2021 19:57 UTC