Julie Brigham-Grette Argues that the Cryosphere is "Ground Zero" for Climate Change in New Op-ed
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![A polar bear, and inhabitant of the cryosphere.](/natural-sciences/sites/g/files/ijdqth206/files/styles/text_area_full_xl/public/2023-11/Cryosphere_Polar_Bear_USGeo_Patrick_Kelley_4x3.jpg?itok=yPh79SV1)
Brigham-Grette and her co-author highlight the importance of the cryosphere (Earth’s ice sheets, sea ice, permafrost, polar oceans, glaciers, and snow).