Credit: Climate

The atmospheric scientist that led a major year-long Arctic research expedition said Tuesday that the world may have already hit one of the so-called climate “tipping points.”

“The disappearance of summer sea ice in the Arctic is one of the first landmines in this minefield, one of the tipping points that we set off first when we push warming too far,” said Markus Rex of the Alfred Wegener Institute, reports Agence France-Presse.

“And one can essentially ask if we haven’t already stepped on this mine and already set off the beginning of the explosion,” he added.

“If we keep going as we are then the Arctic will be ice-free in summer within a few decades and the world I just described will no longer exist.”

“During the Mosaic expedition, the ice in the spring of 2020 receded more quickly than ever before on record,” Rex said. “The expansion of the ice was only about half as large in the summer than decades ago and only about half as thick as during the times of [Norwegian explorer Fridtjof] Nansen and his expedition with Fram, a wooden sailboat, […]

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