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This is a story about the greatest risks to humanity, and what we can do about it. We are living in a time when human-made risks pose the biggest threat to our existence. Technological progress has brought us to a precipice. For the first time ever, we have the capacity to destroy ourselves. Edge of Existence lays out how we can pull ourselves back from this precipice in order achieve a vast and extraordinary future.
2022 • Environment
Iain Stewart investigates a new and controversial energy rush for the natural gas found deep underground. Sometimes, this is right under the places people live in. Getting it out of the ground involves hydraulic fracturing - or fracking. Iain travels to America to find to find out what it is, why it is a potential game changer and what we can learn from the US experience. He meets some of the people who have become rich from fracking as well as the communities worried about the risks.
Iain looks at the big picture of Earth's place in space. It's taken four and a half billions years and several great catastrophes to turn it from a barren rock to the unique planet we know today.
Mathematicians Dr. Hannah Fry, Prof. Norman Fenton and Prof. David Spiegelhalter reveal the three numbers that tell the story about the past, present and future of the earth's climate.
S1E1 • Climate Change by the Numbers • 2016 • Environment
Stabilizing our planet's life-support system won't be easy — but it can be done. And our survival depends upon it.
2021 • Environment