Cumulative CO2 emissions from 2015 onwards may not exceed 424 billion tons of carbon and that the point of no return (PNR) is 2035 for the policy scenario where the share of renewable and nuclear energy rises by 2% per year. If the risk tolerance is 67% chance of exceeding the-2 degree increase. If renewables … Continue reading Point of no return for climate action is point when Geoengineering will start