
Killer smog
BBC Inside Science
00:00
A Very Short History of Life on Earth
A Very Short History of Life on Earth covers 4.6 billion years, but there's another billion at the end which is what will happen after human beings. The bacteria that release lethal oxygen into the atmosphere 2.5 billion years ago precipitated the greatest massive extinction of all time. In a matter of a mayfly whisper of geological history, we will have vanished without anything to show for ourselves. But somehow that makes it more important that we leave the planet in a way that we would wish to find it - if you see what I mean.
Transcript
Play full episode