> Here the question is how to remove excess CO2 without destroying the rest of the planet.

Nature already scrubs CO2 and actually thrives on the elevated amounts; reducing production means nature will have a chance to catch up. That is, assuming we've not already reached a catastrophic tipping point where e.g. algae (responsible for most CO2 sequestration) die from the heat and the CO2 sequestered in permafrost is released.