Arctic Cloud Formation Process Unveiled, Missing from Climate Models

August 18, 2026

Scientists have uncovered a new natural cloud factory near melting sea ice in the Arctic that dramatically increases particle formation for clouds by up to 50 times daily.

Sunlight reacts with chemicals released by the ocean, algae, and ice, creating an active zone around the retreating sea ice edges where these particles multiply rapidly.

This process could significantly impact climate models as it has been overlooked in current simulations, potentially reshaping our understanding of Arctic warming trends.

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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.