alt Hacker NewsWe have actually had one similar high-CO2 event in the past, which wasn't human made.
It's called the Permian Extinction, and eliminated around 90% of all life on earth.
We have actually had one similar high-CO2 event in the past, which wasn't human made.
It's called the Permian Extinction, and eliminated around 90% of all life on earth.
The reduction in biomass at the boundary was possibly much greater. For example, no coal was formed for 10 million years, and the shell part of marine sediments was reduced by 97%.