Protester shot in chest by live police round during Hong Kong protests

This might sound alarmist, but do you think China is the biggest upcoming global problem after climate change? For two reasons:

1. China has a totalitarian ruling system. They intend to realize George Orwell's 1984.

2. Present-day China essentially has no ethics. Take the US in comparison. No matter how perverse the people in power become and even if they do messed up things, the US has some founding morals and principles they do not forget. China, in comparison, systematically rooted out these values since the Great Leap Forward. The happenings at Hong Kong and Xinjiang epitomize that.

I do think China's expansionist policy bodes poorly for all of humanity.

After climate change? I have always feared totalitarian governments more than climate change. The death tolls are a hundred million higher.

The six mass extinction event that humanity is currently causing is going to affect billions of people for centuries to come. If we have systemic ecosystem collapses and 90% of species go extinct, there will be a profound effects. When crops fail and fresh, potable water is extremely constrained, authoritarianism will sweep the world at an even more accelerated pace and regional and world wars are likely. It will be interesting to see how mutually assured destruction holds up and prevents nuclear war when climate change will have already guaranteed many levels of destruction and created a very desperate populace.

If humanity is causing extinctions, it's due to habitat destruction and local pollution. Climate change (+0.38C from 1980-2010) is not the cause.