Our planet is travelling at 30km/s around our Sun, which is travelling at 250km/s around the centre of the Milky Way, which is zooming at over 2 million km/h into deep space.

The only reason we can survive this epic cosmic voyage is because Earth is equipped with everything we need to survive. Our home planet creates an endless supply of food, water and oxygen. It maintains a perfect temperature for our bodies and recycles our waste. It even shelters us from cosmic storms and asteroids on our dangerous journey through the universe.

In this year’s Christmas Lectures from the Royal Institution, three expert scientists from different fields will present a unique ‘user’s guide’ to Planet Earth. They will unravel astonishing global systems and remarkable natural wonders that combine to keep life on Earth alive.

And then they’ll explore how human activity has become an overwhelming geological force – disrupting the finely tuned systems that have kept our planet running smoothly for billions of years. We’ll learn how we can each help repair the damage we’re doing and live more sustainably, as Earth’s population increases.

Each of these world-famous Lectures from the Royal Institution will bring to life one aspect of Earth’s inner workings:

Tara’s Royal Institution Christmas Lecture, can now be viewed around the world via the Royal Institution website.  In Lecture three of Planet earth: A Users Guide, environmental scientist Tara Shine demonstrates how Earth produces a never-ending supply of oxygen – the raw material for all complex life – and then reveals what’s really in the air we breathe, and why today’s increased carbon emissions are so dangerous to this delicate balance.

Watch Tara’s Lectures here.

This text has been amended from The Royal Institutions Website. You can find the original piece here

 

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