>>Massive volcanism in Siberia kickstarted the end-Permian extinction around 250 million years ago, wiping out more than 90 per cent of marine species and two-thirds of vertebrates.
A huge asteroid pounding into Earth killed off the dinosaurs.
Compared to these events, it might be difficult to imagine how we little humans could affect the planet’s weather systems.
But researchers have calculated that we are now pumping out between 40 and 100 times more CO2 than all the volcanoes on Earth.<<
https://www.abc.net.au/news/science/2019-10-14/humans-co2-volcanoes-climate-change-carbon-cycle/11586226