These ones?

We uh, can’t.

Not in the timescale that matters to us, with the resources and technological development available at hand.

But generally speaking?

You would need to introduce a different, runaway feedback loop that modifies/cancels/counters the first.

Like fungi did when they learned to eat lignin, or cyanobacteria introduced when they started spitting out that horrible and nasty O2.

Time and scale are what will do us in.

We just didn’t pace ourselves at all, societally speaking.

Weren’t able to build the chemistry and engineering tools needed to meaningfully expand the scope of the system beyond our planet to access any other resources or solutions beyond it…

And still cannot agree to any meaningful planet side changes that might even remotely allow for later pipedreams, because they need to happen now.

The Futurama ice cube joke is funny, but we can’t even attempt anything half as harebrained on a fraction of that scale.