As stated in the main text, the effects of future damage, which are developing according to BHM estimates, have so far been studied on the basis of predefined scenarios of warming and economic growth. A significant contribution from Ricke et al.9 concludes that the BHM`s estimates are related to a fairly high social carbon price, which could indicate that an optimal policy should be severe. Burke et al.8 show that a significant reduction in damage is possible if the temperature increase is limited to 1.5 degrees Celsius or 2 degrees Celsius. Ueckerdt et al.10 also represent the cost of reduction in a model with exogenous economic growth and changing temperatures. Compared to these contributions, our method of developing a damage function based on BHM estimates within an IAM allows us to maintain the different feedback processes between the economic and climatic mechanisms of the DICE model. USA Today said in an editorial: “There was no grandeur in the decision it made on Thursday, but only the increased prospect of a climate-hit globe abandoned for future generations.”  The New York Times called it “outrageous” and said that Trump “knew nothing or cared little about the science that understugs with the strong warnings about environmental disorders.”  The CND become CND – nationally determined contributions – as soon as a country formally adheres to the agreement. There are no specific requirements as to how or how many countries should reduce emissions, but there were political expectations about the nature and rigour of the targets set by different countries. As a result, the scale and ambition of national plans vary widely, largely reflecting each country`s capacity, level of development and contribution to emissions over time. China, for example, has committed to cleaning up its CO2 emissions by 2030 at the latest and reducing CO2 emissions per unit of gross domestic product (GDP) by 60-65% by 2030 from 2005 levels. India has set a target of reducing emissions intensity by 33-35% from 2005 levels by 2030 and producing 40% of its electricity from non-fossil fuels.