It's interesting that Professor Damodaran discussed that, and he seems to have an answer.
As far as I'm concerned, I think we should be able to buy those offset credits but they should be of high quality. Proper information on what they are would be necessary. No one should be led to believe that buying those credits will resolve the climate crisis or that every business can offset anything.
The problem isn't the fact that credits exist. It's a good thing that they do. They can help ensure that money is invested in reforestation or conservation projects. These credits have a role to play.
However, they pose two problems. In some instances, they're of very poor quality and they're used for all kinds of things that make no sense—