Petermann Glacier | Occupy World Writes

The way that the Petermann Glacier in Northwest Greenland is melting indicates that current models are too conservative.

By Olivia Rosane. Published 5-8-2023 by Common Dreams

In the center of this NASA photograph taken in 2012, Petermann Glacier in northwest Greenland gradually moves toward the ocean, with large segments breaking off and drifting away as icebergs. Researchers at UCI and NASA JPL used satellite data from three European missions to learn how warm ocean water is causing the migration of the glacier’s grounding line, leading to its rapid deterioration. (Photo: NASA)

A glacier in the north of Greenland is melting faster and in a different way than scientists previously thought, and this has troubling implications for the future speed of global sea-level rise.

The new discovery was published in the Proceedings of the National Academy of Sciences Monday. The scientists found that warming ocean water had melted a cavity in the bottom of Petermann Glacier taller than the Washington Monument, as The Associated Press reported. If other glaciers in Greenland and Antarctica behave the same way, it could double predictions for how quickly the burning of fossil fuels will melt ice and raise sea levels.

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‘Bad News’: Unexpected Melting of Greenland Glacier Could Double Sea-Level Rise Projections

The way that the Petermann Glacier in Northwest Greenland is melting indicates that current models are too conservative.