Why do we only have 30-50 years of civilization left on Earth? I haven't heard of anything that would make the planet uninhabitable on such a short timescale.
https://www.resilience.org/stories/2020-06-08/collapse-of-ci...
https://en.wikipedia.org/wiki/Will_Steffen
From https://www.sciencedirect.com/science/article/abs/pii/S09593... :
> This paper focuses on a comparison of recently collated historical data for 1970–2000 with scenarios presented in the Limits to Growth. The analysis shows that 30 years of historical data compare favorably with key features of a business-as-usual scenario called the “standard run” scenario, which results in collapse of the global system midway through the 21st century. The data do not compare well with other scenarios involving comprehensive use of technology or stabilizing behaviour and policies. The results indicate the particular importance of understanding and controlling global pollution.
https://www.theguardian.com/environment/2019/dec/30/environm...