London-sized iceberg breaks off Antarctica. Here's why it's no biggie. | USA TODAY

According to the British Antarctic Survey, an iceberg the size of greater London has split from an ice shelf and is now floating away from Antarctica.

RELATED: Glaciers melting faster than scientists expected due to climate change https://bit.ly/3wre4rT

The world’s glaciers are shrinking and disappearing faster than scientists thought, with two-thirds of them projected to melt out of existence by the end of the century at current climate change trends, according to a new study.

But if the world can limit future warming to just a few more tenths of a degree and fulfill international goals — technically possible but unlikely according to many scientists — then slightly less than half the globe’s glaciers will disappear, said the same study. Mostly small but well-known glaciers are marching to extinction, study authors said.

In an also unlikely worst-case scenario of several degrees of warming, 83% of the world’s glaciers would likely disappear by the year 2100, study authors said.

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