Fossil fuel burning once caused a mass extinction – now we’re risking another

What secrets do Devon's coastlines hold? Everyone knows the story of the latest mass extinction event, where an asteroid impact resulted in the dinosaurs' demise. But what did life on earth look like in the years that followed? Through the untold story of Devon's cliffs, George Monbiot warns that our planet was left in a near-lifeless state, and we're running out of time to stop it from happening again.