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) broke off the Brunt Ice Shelf in Antarctica. This event is this region’s third significant iceberg calving in the past four years. The first came In 2021, when, which assigns names based on the Antarctic quadrant where the iceberg was first sighted. Since Brunt is located in the eastern Weddell Sea, its bergs receive an ‘A’ designation while the numbers are assigned sequentially.
As the image above shows, the thinner ice appears warmer since it is closer in temperature to open water, while thicker continental ice appears darker. The temperature differences between the ocean and ice sheets also help scientists identify where the calving line is. Fortunately, the iceberg does not threaten the British Antarctic Survey’s, an international research platform that observes Earth, atmospheric, and space weather.
The ongoing loss of Antarctic ice is one of the clearest indications of rising global temperatures and a dire warning. In addition to contributing to rising sea levels, coastal flooding, and extreme weather, the loss of polar ice leads to additional solar radiation being absorbed by Earth’s oceans, causing temperatures to rise further.
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