boffin has warned.Daniel Rothman, a professor of geophysics at MIT, warned the critical threshold for the element in the seas is about 300 gigatons in a century – but by the year 2100, there could be a whopping 500 gigatons instead.Once the threshold is passed, chaos would ensue on the planet and the human race would be entirely wiped out, reports SPUTNIK.But terrifyingly, the scientist said if the world was currently in a mass extinction event we may not even know.Because they don’t take place overnight and tend to occur over a period of years, it isn’t guaranteed anyone would notice until it’s too late.The professor told The Times of Israel: “What we’re seeing today is very serious.“However, I don’t know how much is necessary to move us.
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