Climate restoration
Climate restoration refers to the goal and actions aimed at reducing atmospheric carbon dioxide (CO2) levels to below 300 parts per million (ppm)—levels at which humans have thrived for thousands of years. . This would restore the Earth system generally to a safe state, for the well-being of future generations of humanity and nature. Actions include carbon dioxide removal from the Carbon dioxide in Earth's atmosphere, which, in combination with emissions reductions, would reduce the level of CO2 in the atmosphere and thereby reduce the global warming produced by the greenhouse effect of an excess of CO2 over its pre-industrial level. Actions also include restoring pre-industrial atmospheric methane levels by accelerating natural methane oxidation.
Climate restoration enhances legacy climate goals (stabilizing Earth's climate) to include ensuring the survival of humanity by restoring CO2 to levels of the last 6000 years that allowed agriculture and civilization to develop.