Engine Earth

E1

Professor Chris Jackson reveals how, for billions of years, volcanic activity drove climate change on planet Earth. Now, it is humans.

Water World

E2

Dr Helen Czerski explains why the ocean is so vital to life on earth and what we need to know to be good citizens of our ocean planet.

Up In The Air

E3

Dr Tara Shine takes a deep breath and explores the gases that make up the air we breath. One of them might provide the answer for heating and transport in the future.