: Paleoclimatología: cryosphere

constituent of the planet Earth > cryosphere

cryosphere

The cryosphere (from the Greek kryos, "cold", "frost" or "ice" and sphaira, "globe, ball") is an all-encompassing term for the portions of Earth's surface where water is in solid form, including sea ice, lake ice, river ice, snow cover, glaciers, ice caps, ice sheets, and frozen ground (which includes permafrost). Thus, there is a wide overlap with the hydrosphere. The cryosphere is an integral part of the global climate system. It also has important feedbacks on the climate system. These feedbacks come from the cryosphere's influence on surface energy and moisture fluxes, clouds, the water cycle, atmospheric and oceanic circulation. Through these feedback processes, the cryosphere plays a significant role in the global climate and in climate model response to global changes. Approximately 10% of the Earth's surface is covered by ice, but this is rapidly decreasing. Current reductions in the cryosphere (caused by climate change) are visible in ice sheet melt, glaciers decline, sea ice decline, permafrost thaw and snow cover decrease. (Adapted from: https://en.wikipedia.org/wiki/Cryosphere)

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