Greenland's melting ice sheet is the world's single biggest contributor to sea level rise. In a new study, scientists used drones to show how water flows through cracks in the ice, which creates dramatic waterfalls--and could be making it more unstable.
Greenland's melting ice sheet is the world's single biggest contributor to sea level rise. In a new study, scientists used drones to show how water flows through cracks in the ice, which creates dramatic waterfalls--and could be making it more unstable.
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