> As these are very large trees, establishing large colonies can have a relatively meaningful impact in carbon capture. Depends on how you define meaningful.

> As these are very large trees, establishing large colonies can have a relatively meaningful impact in carbon capture. Depends on how you define meaningful. Worldwide, the total sequestered carbon in plants is equal to about 10 years of human emissions (~45yrs if we are talking net emissions). If you increase the biomass by a percent or two, you basically buy yourself a few months emissions. Eventually that carbon is going to end up back in the atmosphere, too, but that at least is time shifted out by a few hundred years. (source: I'm part of a Climate&Energy research group, though this particular subtopic is not my specialty)