Main content
Atmosphere
4/5 The almost implausible story of how our life-sustaining atmosphere came to exist.
Human
5/5 From the end of the dinosaurs to the rise of the planet鈥檚 most unlikely force: humanity.
Green
3/5 How plant life turned the Earth from a barren rock into a vibrant green world.
Snowball
2/5 Life鈥檚 existence hangs in the balance when the ancient Earth almost entirely freezes over.
Inferno
1/5 Chris Packham explores the dramatic moment nearly all life on Earth was wiped out.
