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Scientists discover a natural Arctic cloud factory missing from climate models

A newly discovered Arctic process can dramatically boost the number of particles that help form clouds. Near melting sea ice, sunlight reacts with chemicals released by the ocean, algae, and ice, causing cloud-seeding particles to multiply by as much as 50 times in a day. Because the active ice-edge region is growing as sea ice retreats, the effect could become increasingly important. Scientists now want to add the process to climate models to see how much it could reshape Arctic warming.

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