The tweet of the (last) week is thought provoking. What would happen if all life disappeared from our planet? Not just us humans, but all animals and plants...
Life disappears from the Earth. What happens then? http://t.co/hhN3dpVQBG pic.twitter.com/mGYQqXlvpg
— New Scientist (@newscientist) December 12, 2014
As we have seen, life appearing had a great impact on the planet: oxygen levels rose in the atmosphere and reduced CO2, causing the Earth's temperature to plunge. If we all disappeared, the opposite would happen: O2 levels would fall and CO2 would be on the rise again, causing great warming.
Other possible changes? Without plants, precipitation patterns would be altered, causing the continents to be drier and hotter. The ozone layer would also be in trouble with the falling levels of O2.
The article is very interesting, going through some other changes that could happen. It really shows how life is deeply connected with the climate!
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