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  2. Ice sheet - Wikipedia

    en.wikipedia.org/wiki/Ice_sheet

    Greenland ice sheet as seen from space. An ice sheet is a body of ice which covers a land area of continental size - meaning that it exceeds 50,000 km 2. [4] The currently existing two ice sheets in Greenland and Antarctica have a much greater area than this minimum definition, measuring at 1.7 million km 2 and 14 million km 2, respectively.

  3. Antarctic ice sheet - Wikipedia

    en.wikipedia.org/wiki/Antarctic_ice_sheet

    The Antarctic ice sheet is a continental glacier covering 98% of the Antarctic continent, ... Polar climatic temperature changes throughout the Cenozoic, ...

  4. Polar ice cap - Wikipedia

    en.wikipedia.org/wiki/Polar_ice_cap

    A polar ice cap or polar cap is a high-latitude region of a planet, dwarf planet, or natural satellite that is covered in ice. [ 1 ] There are no requirements with respect to size or composition for a body of ice to be termed a polar ice cap, nor any geological requirement for it to be over land, but only that it must be a body of solid phase ...

  5. Martian polar ice caps - Wikipedia

    en.wikipedia.org/wiki/Martian_polar_ice_caps

    1995 photo of Mars showing approximate size of the polar caps. The planet Mars has two permanent polar ice caps of water ice and some dry ice (frozen carbon dioxide, CO 2).Above kilometer-thick layers of water ice permafrost, slabs of dry ice are deposited during a pole's winter, [1] [2] lying in continuous darkness, causing 25–30% of the atmosphere being deposited annually at either of the ...

  6. Much remains a mystery about the planet’s melting ice sheets ...

    www.aol.com/much-remains-mystery-planet-melting...

    Polar ice sheets are losing billions of tons of mass every year, and meltwater is responsible for about a third of the global average rise in sea level since 1993 Much remains a mystery about the ...

  7. Polar regions of Earth - Wikipedia

    en.wikipedia.org/wiki/Polar_regions_of_Earth

    Visualization of the ice and snow covering Earth's northern and southern polar regions Northern Hemisphere permafrost (permanently frozen ground) in purple. The polar regions, also called the frigid zones or polar zones, of Earth are Earth's polar ice caps, the regions of the planet that surround its geographical poles (the North and South Poles), lying within the polar circles.

  8. Ice cap - Wikipedia

    en.wikipedia.org/wiki/Ice_cap

    In glaciology, an ice cap is a mass of ice that covers less than 50,000 km 2 (19,000 sq mi) of land area (usually covering a highland area). Larger ice masses covering more than 50,000 km 2 (19,000 sq mi) are termed ice sheets .

  9. Ice cap climate - Wikipedia

    en.wikipedia.org/wiki/Ice_cap_climate

    However, wind can blow snow onto the ice sheets from nearby tundras. Ice sheets are often miles thick. Much of the land located under ice sheets is actually below sea level, and would be under the ocean if the ice were removed. It is the weight of the ice itself that forces this land below sea level. If the ice was removed, the land would rise ...