Prominent academics, including a former IPCC chair, round on governments worldwide for using the concept of net zero emissions to ‘greenwash’ their lack of commitment to solving global warming.
The second problem I have with your post is that there were far higher CO2 levels in history which didn’t correlate with temperature rises.
Also, a lot of this global extincion theories are just theories that are based on predictions that are dependant on inputs and not all inputs (not even close) are considered in those calculations. Even IPCC itself thinks not including clouds feedback (and it’s dominant termostatis control of temperature) could be a potential problem in their predictions.
All in all - human extinction theory is not something there is a consensus for and it certainly is a part of alarmism.
According to graphs I have seen, this won’t be the fastest warming period ever, even by worst predictions. Example: https://scitechdaily.com/images/Past-and-Future-Global-Temperature-Trends-scaled.jpg
The second problem I have with your post is that there were far higher CO2 levels in history which didn’t correlate with temperature rises.
Also, a lot of this global extincion theories are just theories that are based on predictions that are dependant on inputs and not all inputs (not even close) are considered in those calculations. Even IPCC itself thinks not including clouds feedback (and it’s dominant termostatis control of temperature) could be a potential problem in their predictions.
All in all - human extinction theory is not something there is a consensus for and it certainly is a part of alarmism.
However, scientists have conclusively demonstrated that in the 19th through 21st centuries, CO2 emissions directly predict rises in temperature.