> There are also plenty of ways to take CO2 out of the air (several of which literally grow on trees, or are trees), the question for both organic and technolog

> There are also plenty of ways to take CO2 out of the air (several of which literally grow on trees, or are trees), the question for both organic and technological CO2 sequestration is economics. As you mentioned none of them are currently economical. You can't drive such a thing if it does not make sense financially.