Indeed. We need to get the CO2 out of the atmosphere, or else we still end up with ocean acidification. Higher base CO2 level will also soon begin to impact hum

Indeed. We need to get the CO2 out of the atmosphere, or else we still end up with ocean acidification. Higher base CO2 level will also soon begin to impact human cognition - it only takes 1000ppm for CO2 to begin to have an impact on our mental performance. If outdoor CO2 levels are high, ventilating buildings will become less effective.