Past carbon emissions have affected the environment and will continue to do so, but a study suggests that the worst can be prevented if we act prudently.
A study in Nature Climate Change suggests that the chances of the world hitting the 1.5 degree celsius threshold is 42% and the probability will rise to 66% if we don’t stop carbon emissions before 2029. Since that is obviously not going to happen, we look at the next threshold which is 2 degree celsius rise in temperature. The chances of 2 degree rise are 2% right now but 35 years later if emissions still keep going on it will also rise to 66%. Also worth noting is that China and India, the two big carbon emitters, have set a target of 2060 and 2070 respectively.
If the emissions stop now, the temperature will peak within a decade followed by a very gradual global cooling.
Kyle C. Armour, co-author of the study and associate professor of oceanography and atmospheric sciences at the University of Washington in Seattle says "We have to [slash emissions] almost immediately. Focusing on limiting 1.5 degrees celsius as a policy goal may no longer be "realistic," the world has a better shot at addressing 2 degrees”.