Scientists have managed to capture on film the moment a huge iceberg breaks away from a glacier in eastern Greenland. This can give researchers a sense of how the overall global climate is changing.
The glacier would stretch from lower Manhattan to Midtown in NYC, as illustrated here. But there is much that scientists have yet to learn about how and why this large-scale breakage happens, which makes it hard to predict when glaciers will fall apart, and how much that glacier disintegration will affect sea levels over time, David Holland, leader of the research team and a professor at New York University's Courant Institute of Mathematics and NYU Abu Dhabi, told Live Science.
This would be enough to overwhelm coastal areas around the globe, including New York City. So far, the Thwaites Glacier, a part of the Western Antarctic Ice Sheet that has already drained a mass of water that is roughly the size of Great Britain or the state of Florida, has accounted for approximately four percent of global sea-level rise.
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It is known that the iceberg broke away June 22, 2018.
It comes as scientists warn global warming could be even more disastrous than previously thought, bringing "unstoppable" sea level rises and scorching rain forests. Apart from the large chunk thin and tall icebergs known as pinnacle bergs also drift out to sea. "The better we understand what is happening, the more precisely we can predict and plan for climate change", explains an employee at NY University, Denise Holland.
The video shows a tabular (wide and flat) iceberg separate, then travel down the fjord where it smashes into another iceberg. The latest calving event also suggests that ice sheet melting is taking place with increased strength and at a speed that no models have predicted before. The research is centered on the Thwaites Glacier.
"Global sea-level rise is both undeniable and consequential", said research team leader David Holland.