2020: Planet Earth - A User's Guide

Supporting Content

• Now it's time to launch your own space mission

  

• Why the CO2 we breathe out isn't bad for the environment — Up in the Air

  Duration: 2:02

• How salty is the ocean - and why? — Water World

  Duration: 2:23

• Earth's 4.5 billion history in 100 metres — Engine Earth

  Duration: 3:00

• Climate and Weather: What's the difference? — Engine Earth

  Duration: 1:41