I mean, in a sane world this would be accompanied by a tax on emitting atmospheric CO2 as well. Though I suppose it would make more sense to just allow the amou

I mean, in a sane world this would be accompanied by a tax on emitting atmospheric CO2 as well. Though I suppose it would make more sense to just allow the amount of sequestered carbon as a write-off against the CO2 tax; no need to set a specific target like "20%".