Irreversible Warming Tipping Point Possibly Triggered, Says Scientist - NDTV

The expedition returned to Germany in October after 389 days drifting through Arctic.

"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.

The expedition returned to Germany in October after 389 days drifting through the Arctic, bringing home devastating proof of a dying Arctic Ocean and warnings of ice-free summers in just decades.

Summarising their first findings, Rex said scientists found that the Arctic sea ice had retreated "faster in the spring of 2020 than since the beginning of records" and that "the spread of the sea ice in the summer was only half as large as decades ago".

The data collected during the expedition included readings on the atmosphere, ocean, sea ice and ecosystems.