What Is the Cryosphere and Why 2°C Is Too High?

A Climate Class on the Cryosphere The cryosphere encompasses all the frozen water on Earth, including glaciers, ice sheets, sea ice, snow, and permafrost. These frozen regions play a critical role in regulating the planet’s climate. They not only reflect sunlight, cooling the Earth, but also store vast amounts of carbon, help regulate ocean currents, […]

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