The old bad news: Antarctic ice is melting, which could lead to a dangerous rise in sea levels by the end of the century. The new bad news: The melt is speeding up. In fact, the average annual rate of melting between 2012 and 2017 was three times the rate between 1992 and 2011. Yikes. There’s still time for cities to minimize the damage, but experts say they need to act within a decade. HuffPost has the story:

The Antarctic ice sheet is melting at a faster rate than at any previously recorded time, according to a comprehensive new study.

The planet’s largest ice sheet is now losing more than 240 billion tons of ice every year ― a threefold increase from less than a decade ago. The melting is happening so fast that it could cause sea levels to rise 6 inches by the end of the century, the study projects.

The accelerating pace of melting means rising sea levels could threaten coastal communities far earlier than scientists had expected. North America, particularly the East Coast of the U.S., could be particularly hard-hit.

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