Mark Carwardine's ATA GLANCE...

摘要

Over the last half a billion years, life on Earth has been nearly wiped out five times. These mass extinctions were caused by climate change, volcanic eruptions and, 65m years ago, a giant asteroid smashing into the planet. Many experts believe that the annihilation of wildlife we are witnessing today means that we are in the middle of a sixth mass extinction. What makes this one different is that we are to blame.