The Earth has lived through 5 mass extinctions of animals and plants. The last one - 66 million years ago - took out the dinosaurs. That extinction is believed to have been caused by a giant asteroid smashing into the Earth. Now we are living through extinction number 6. And the cause is us. Human behavior.
The Sixth Extinction
- Elizabeth Kolbert - covers the environment for the New Yorker - @ElizKolbert