Last week, Coppola attended her very first annual meeting at the Bjerknes Centre. She appreciated the wide range of climate research. "The further away from my field, the better."

Climate models produce enormous amounts of data. These are too large to handle for ordinary people, and too costly to run on large super computers. A new cooperation on machine learning and AI looks to solve the problem.

The Arctic sea ice is on the move all year. It expands to its maximum during March and reaches its minimum in September. The variation during the year, and from year to year, depends on wind, weather and ocean currents. But the Arctic is changing.