Tourists cruising near the Upsala Glacier in Argentina recently spied an unusual sight: a massive iceberg flipping over in the middle of the ocean. Luckily for the rest of the world, someone caught the whole thing on film.
In the minute-plus long clip, a huge block of ice can be seen dramatically shifting and churning in the water, before turning itself over almost completely. Spectators on the boat ooh, ahh, and scream in delight.
The dramatic footage was uploaded to YouTube by user "osibaruch," who writes:
"This Iceberg was "calved" by Argentina's Uppsala glacier. While we were passing by it with a catamaran, the huge berg lost a part of itself (look at the right side sinking) and then flipped over with a huge roar. In the process of melting this happens all the time, but it is seldom that it is captured on video WHEN it happens..."
As the BBC reports, the Upsala glacier was once the biggest in South America, but has been retreating at a rapid pace, some 656 feet a year. Whether this glacier's shrinking is related to climate change is a matter of debate among scientists. Some believe that "complicated shifts in glacial dynamics and local geology," not higher global temperatures, are to blame.
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