BBC Royal Institution Christmas Lectures - Planet Earth: A User's Guide • 2020 • 3 episodes • 2h:57m

The hidden wonders of Earth and the impact of human activity.

Engine Earth

Professor Chris Jackson charts the planet's changing climate. He shows how the oldest rocks and fossils provide evidence of radical climate changes throughout its history, revealing that what drives them is the amount of carbon dioxide in the atmosphere.

1/2 • 2020 • Environment

Water World

Dr Helen Czerski reveals how shifting ocean water distributes heat and nutrients around the Earth. This process is linked to almost every aspect of human existence, and the lecture explores how dependent we are on the ocean for weather, food supply and connection between land masses - as well as exploring what needs to be done by humans to maintain this vital element of the Earth's ecosystem.

2/3 • 2020 • Environment

Up in the Air

Dr Tara Shine explores the gases that make up the air we breathe, one of which may provide the answer to transport in the future.

3/3 • 2020 • People