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What The Earth Will Look Like When We're Gone?

June 2017

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BBC Knowledge

From asteroid strike to climate change to nuclear war, humanity faces all kinds of existential threats. But, if our species disappeared tomorrow, what would actually happen – and what kind of planet would we be leaving behind,

- Duncan Geere

What The Earth Will Look Like When We're Gone?

We are living through the dawn of a new epoch in our planet’s history – the Anthropocene. Humans have always shaped aspects of their environment, from fire to farming. But the influence of Homo sapiens on Earth has reached such a level that it now defines current geological time.

From air pollution in the upper atmosphere to fragments of plastic at the bottom of the ocean, it’s almost impossible to find a place on our planet that humankind has not touched in some way. But there’s a dark cloud on the horizon. Well over 99 per cent of the species that have ever existed on Earth have died out, most during cataclysms of the sort that killed off the dinosaurs.

Humanity has never faced an event of that magnitude, but, sooner or later, we will.

THE END IS NIGH!

Human extinction, many experts believe, is not a matter of ‘if’, but ‘when’. And some think it will come sooner rather than later. In 2010, eminent Australian virologist Frank Fenner claimed that humans will probably be extinct in the next century thanks to overpopulation, environmental destruction and climate change.

Of course, Earth can and will survive just fine without us. Life will persist, and the marks we’ve left on the planet will fade faster than you might think. Our cities will crumble, our fields will overgrow, and our bridges will fall. “Nature will break down everything eventually,” says Alan Weisman, author of the 2007 book The World Without Us, which examines what would happen if humans vanished from the planet. “If it can’t break stuff down, it eventually buries it.”

المزيد من القصص من BBC Knowledge

BBC Knowledge

BBC Knowledge

Are We Close To Making Our Home Away From Earth?

Our exploration of the cosmos is hampered by our bodies and minds, which struggle in space. So could we ever overcome our Biology and settle among the stars?

time to read

10 mins

August 2017

BBC Knowledge

BBC Knowledge

The Viruses That Made Us Human

Viruses give us infections, from the common cold to Ebola and Aids. But new research shows that they may also have played a key role in shaping the evolution of homo sapiens.

time to read

9 mins

June 2017

BBC Knowledge

BBC Knowledge

Can You Supercharge Your Brain?

Your brain is the finely-tuned machine that controls all your actions and emotions, so it makes sense to keep it well-oiled. But, asks Rita Carter, are there any scientifically proven methods to ensure it works better for longer?

time to read

7 mins

June 2017

BBC Knowledge

BBC Knowledge

First Self- Balancing Robot

This robot is the Planar Elliptical Runner (PER).

time to read

1 min

August 2017

BBC Knowledge

BBC Knowledge

Is Social Media Making You Anti-Social?

Many of us have experienced the ways in which social media has changed the online world. But should we be worried about it altering our behaviour too?

time to read

8 mins

August 2017

BBC Knowledge

BBC Knowledge

What You Need To Know  Before You Get In A Driverless Car

Autonomous vehicles can take much of the danger out of driving, but they also present us with new problems to solve. So what needs to be figured out before the technology gets the green light?

time to read

7 mins

August 2017

BBC Knowledge

BBC Knowledge

Saadat Hasan Manto

Saadat Hasan Manto felt deeply and wrote strongly; his work invigorates and disturbs.

time to read

7 mins

August 2017

BBC Knowledge

BBC Knowledge

King Of The Mountains

Picture a primate that grazes like a cow, climbs cliffs like a mountain goat and forms groups as big as shoals of fish. Noah Snyder-Mackler introduces Ethiopia’s gelada.

time to read

7 mins

December 2016

BBC Knowledge

BBC Knowledge

Is Technology Changing Our Brains?

We increasingly rely on social media to talk to friends, GPS to navigate and the web for information. But, asks Jo Carlowe, is that wise?

time to read

10 mins

February 2017

BBC Knowledge

BBC Knowledge

Are You a Genetic Superhero?

Recent research has revealed a handful of ‘superheroes’ walking among us, whose DNA gifts them with resistance against serious diseases. Now, as Kat Amey observes, just have to find them…

time to read

8 mins

February 2017

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