[wolvoleo]

That's exactly my point. We don't have the manpower, the materials, the industry.

For mars this just isn't happening unless we ship half of Earth's people and resources over there. Who will have to live on a toxic planet.

But we can't even ship all that stuff there because we don't have enough fuel to do that (it requires many times the payload in fuel) and all the launches would make earth uninhabitable. Terraforming mars is therefore science fiction unless we break a lot of barriers like clean fusion, space elevators etc. And even then the material question will remain a problem.

I think even reverting climate change on earth, a much easier problem than terraforming a remote planet, is a pipe dream. If we're going to be going carbon capture at that global scale, we're going to need to extract so much material, manufacture so much equipment, transporter it all, deal with all the captured carbon, maintenance, power etc all stuff that's not possible to do completely carbon neutral, that we're just polluting a lot more. Especially if we want to do it at a timescale where it still matters.