Earlier quoted context omitted.
There were a study done in Sweden a few years ago that looked at the question about an individuals actions and the corresponding CO2 production. No car > skipping flight > buy green energy > Get a electric car > diet. https://www.lunduniversity.lu.se/article/four-lifestyle-choi...
The highest bar in the chart says "have one fewer child". It actually exceeds any others by extremely large margin [0]. How is that even considered as the option? One child less means halving population after every generation. Eliminate the population and problem solved? [0] https://www.lunduniversity.lu.se/drimage/1120/630/4832/fourc...
Only if you assume the average is two children per couple and a replacement reproduction rate, which doesn't fit the reality I know. We have a huge population in the billions precisely because that's not what is going on.
If we drop to something below exponential growth rates, this is not a tragedy.