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Study Reveals Northern Hemisphere Darkening at Alarming Rate

10/27/2025

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Summary

Story summary

A study in Proceedings of the National Academy of Sciences finds the Northern Hemisphere darkening faster than the Southern Hemisphere.
The trend relies on 24 years of data from NASA's Clouds and the Earth's Radiant Energy System (CERES) mission.
The changes are linked to melting snow and ice, lower air pollution, and increased water vapor, while cloud cover stays stable.

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Story summary

A study in Proceedings of the National Academy of Sciences finds the Northern Hemisphere darkening faster than the Southern Hemisphere.
The trend relies on 24 years of data from NASA's Clouds and the Earth's Radiant Energy System (CERES) mission.
The changes are linked to melting snow and ice, lower air pollution, and increased water vapor, while cloud cover stays stable.