text: It??s highly unlikely the atmospheric levels of CO2 will reach 1,000 ppm in the next couple of centuries, but if they did, it appears that at least one major and widespread species of cold water coral can adapt within six months. Co2 feeds plant life above the water, and atmospheric levels were much higher during the time that corals evolved. That doesn??t guarantee anything, but suggests scientists could have been more cautious in predicting a disaster when they didn??t have the data.