“Today, species are now going extinct 1,000 times faster than the rate recorded during the previous 65 million years.19 The “sixth great extinction” is upon us. There have been five large extinction events in the past, from the Ordovician-Silurian, some 400 million years ago, to the Cretaceous-Paleogene, some 60 million years ago.20 However, unlike prior events, it appears this one is entirely manmade.”
