[mlindner]

A tree is actually a very poor method of carbon capture. It's not durable and doesn't last ages. It can catch fire. And it takes decades. If you're gonna do organic methods then blue-green algae is way better. But I think the idea here is to come up with a technology that's even better than that.

[totalZero]

Decades are not very long, in the grand scheme of things.

I would argue that the first step would be to combat deforestation.