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What would the world look like if humans disappeared?

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This latest episode of AsapSCIENCE imagines our planet without all the people. And, sadly, it’s kind of beautiful. We know that we have a huge, and often negative, impact on the planet. But what would happen if all humans suddenly disappeared?

AsapSCIENCE shows us how Earth would look a few months, centuries and millennia from now. As you can imagine, one of the biggest impacts would be on other
species on the planet – within a few hundred years, the animals we
haven’t already wiped out would begin to bounce back, albeit with
altered habitats, and plants and trees would begin to take over our
cities.
But it wouldn’t all be good news for wildlife – within a
few weeks our beloved pets and the 1.5 billion cows, nearly a billion
pigs and 20 billion chickens we have in captivity would all break out
and try to fend for themselves. Unfortunately, many of these animals
wouldn’t make it, due to selective breeding making them ill-suited for
life in the wild (sorry pugs). Head lice and cockroaches would also
suffer, as they’re so reliant on human populations.
 
Within a few
centuries, the streets would turn into rivers, wooden buildings would
either be burnt down or degraded by termites, and steel would begin to
rust and crumble.

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But there will be a few enduring traces of
humans on Earth, and in space, long after we’re gone. Find out what our
longest lasting legacy on the planet will be, and what alien
paleontologists will think of us – arguably Earth’s most invasive
species – in the episode below.
  
Source: AsapSCIENCE

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