I don't have an answer to the math question but carbon sequestration is an important topic. Related, sometimes with pop-sci/layperson citations: -Beavers will

I don't have an answer to the math question but carbon sequestration is an important topic. Related, sometimes with pop-sci/layperson citations: -Beavers will play a role in bringing back wetlands. They can do it better than we can. See book: Eager, by Ben Goldfarb (maybe you've read it already?) -Reversing climate change feels like it is going to require a massive cultural shift. To get to the point of large-scale wetland recovery we'll need government regulation and widespread public support and cooperation. I don't know this happens within the next seven years or so, but it has to. Maybe it'll turn out that Voyageur 2 has revealed our position to the Vogons.