The Earth is becoming a greenhouse: risk + grees4-5 de even if we cut emissions

The 2 degree Celsius threshold could be a point of no return and trigger a domino effect without control. The seas could grow up to 60 meters and many areas of the planet could become uninhabitable. The study on Proceedings of the National Academy of Sciences


"HOTHOUSE Earth" is the English term. Our home, the Earth, is becoming a greenhouse, it had already happened in the past, when the atmosphere was rich in gases like carbon dioxide and there were no ice. But now it is man who changes the weather and everything is happening too fast. The future of our planet is hanging by a thread, the efforts put into the field may not be enough (as those sanctioned by the Paris agreements, as long as they are reached) to avoid that in a not too distant future the seas devour coastal cities and miles of soil, deserts advance by engaging areas once cultivable.


 
In a study published in Proceedings of the National Academy of Sciences (PNA) The Stockholm Resilience center does not give an answer, but warns that the current scenario is worse than we could have expected. According to climatologists, containing global warming within 2 degrees Celsius, compared to pre-industrial times, will be more difficult than expected. And if we do not succeed, it could trigger a domino effect impossible to counter.


THE PLANET LIKE A GREENHOUSE


Gases such as carbon dioxide and methane, released into the atmosphere by human activities, are turning the globe into a huge greenhouse. We are now just over 1 ° from a century and a half ago, with an average growth of 0.17 ° a year. Overcoming the 2 ° (goal of Cop21, with a more ambitious containment at 1.5 °) would be like throwing itself down a steep descent without brakes: the temperature would settle at a global average of 4-5 degrees above pre-industrial levels.




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