I would argue there is a moral "sin" in releasing carbon dioxide into the atmosphere, because (in your words) it leads to "practical problems", i.e. anthropogen

I would argue there is a moral "sin" in releasing carbon dioxide into the atmosphere, because (in your words) it leads to "practical problems", i.e. anthropogenic climate change. If you can remove the carbon again, then it is still a "sin" unless you pay to have your share removed. If it can then be converted to fuel again that is an added bonus. Of course, this whole process needs to occur at a massive scale because we are releasing so much carbon dioxide and want to remove more than we are currently emitting. (P.s. I don't like the word "sin" in this context because of the theological connotation it implies, but I hope the message is clear)