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Duration: 23 minutes

First broadcast: on BBC World Service East and Southern AfricaLatest broadcast: on BBC World Service East Asia

Available for over a year

Justin looks to the future. Could human engineering stabilise the Earth's climate and chemistry in the long term? Show more

A Geochemical History of Life on Earth

4. The great chemistry experiment

Duration: 23 minutes

First broadcast: on BBC World Service East and Southern AfricaLatest broadcast: on BBC World Service East Asia

Available for over a year

What can the last 66 million years teach us about the likely consequences of climate change? And can our species make the next big evolutionary leap needed to tackle it? Show more

A Geochemical History of Life on Earth

2. When bacteria ruled the world

Duration: 23 minutes

First broadcast: on BBC World Service East and Southern AfricaLatest broadcast: on BBC World Service East Asia

Available for over a year

Justin explores the Precambrian period: a kind of dark ages, spanning most of our planet's history, that contained two of the most important developments in evolution. Show more

Duration: 23 minutes

First broadcast: on BBC World Service East and Southern AfricaLatest broadcast: on BBC World Service East Asia

Available for over a year

How did the continuous chemical reaction that we call "life" first begin? Justin Rowlatt tells the story of our planet's chemistry - starting at the very beginning. Show more

A Geochemical History of Life on Earth

3. A series of unfortunate events

Duration: 23 minutes

First broadcast: on BBC World Service East and Southern AfricaLatest broadcast: on BBC World Service East Asia

Available for over a year

Justin discovers how phosphorus may have held evolution back for a billion years, and why volcanoes have both rescued and almost wiped out life on the planet. Show more