Doomed A68 iceberg dumped 1 trillion tons of water into the ocean over 3 years

After the world’s largest iceberg snapped off of the Antarctic Peninsula in July 2017, it drifted north on a three-year death march, shedding an unfathomable amount of meltwater into the sea. Now, a new study of the doomed iceberg (named A68a) reveals just how much water the infamous mega-berg actually lost — and how that could impact the local ecosystem for generations to come…

Using observations from five satellites, the study authors calculated how much the iceberg’s area and thickness changed as it drifted north through Antarctica’s Weddell Sea and into the relatively warm waters of the Scotia Sea. There, while the berg appeared to be headed for a direct collision with South Georgia island, iceberg A68a lost more than 152 billion tons (138 billion metric tons) of fresh water in just three months…

“This is a huge amount of meltwater, and the next thing we want to learn is whether it had a positive or negative impact on the ecosystem around South Georgia,” lead study author Anne Braakmann-Folgmann, a researcher at the Centre for Polar Observation and Modelling in the U.K., said in a statement. “Because A68a took a common route across the Drake Passage, we hope to learn more about icebergs taking a similar trajectory, and how they influence the polar oceans.”

And this is just the beginning, folks. As global warming proceeds, processes like these will reoccur. Better start learning about results and side effects.

One thought on “Doomed A68 iceberg dumped 1 trillion tons of water into the ocean over 3 years

  1. Cassandra says:

    In 20 Years, Greenland Ice Sheet Loses Water Enough To Submerge US: Study
    The report says that climate change is particularly alarming in the Arctic, which scientists say is warming at a rate 3 to 4 times the global average. https://www.ndtv.com/world-news/greenland-ice-sheet-loses-enough-water-in-20-years-to-submerge-us-study-2743770
    Concern grows over Atlantic Ocean ‘conveyor belt’ shutdown
    Effects of climate change are slowing a key ocean circulation system with immense consequences for Earth’s climate if it collapses. https://www.aljazeera.com/news/2021/11/12/concern-grows-over-atlantic-ocean-conveyor-belt-shutdown

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