Following up on a nice piece by Josh on recent research showing a link between a mass extinction that took place about 450 million years ago, the late Ordovician mass extinction, and a change in climate and another one on the link between the Permian-Triassic extinction event and the burning of large amounts of coal (in volcanoes), here’s a great video by Peter Sinclair on the connection between greenhouse gases, global warming, and mass extinction:
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