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  2. Desert - Wikipedia

    en.wikipedia.org/wiki/Desert

    A desert is a landscape where little precipitation occurs and, consequently, living conditions create unique biomes and ecosystems. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the land surface of the Earth is arid or semi-arid.

  3. Deserts and xeric shrublands - Wikipedia

    en.wikipedia.org/wiki/Deserts_and_xeric_shrublands

    Deserts and xeric (Ancient Greek ξηρός xērós 'dry') shrublands form the largest terrestrial biome, covering 19% of Earth's land surface area. [2] Ecoregions in this habitat type vary greatly in the amount of annual rainfall they receive, usually less than 250 millimetres (10 in) annually except in the margins.

  4. Desert ecology - Wikipedia

    en.wikipedia.org/wiki/Desert_ecology

    Deserts occupy one-fifth of the Earth's land surface and occur in two belts: between 15° and 35° latitude in both the southern and northern hemispheres. [2] These bands are associated with the high solar intensities that all areas in the tropics receive, and with the dry air brought down by the descending arms of both the Hadley and Ferell ...

  5. Biome - Wikipedia

    en.wikipedia.org/wiki/Biome

    Anthropogenic climate change has the potential to greatly alter the distribution of Earth's biomes. [34] [35] Meaning, biomes around the world could change so much that they would be at risk of becoming new biomes entirely. [36] More specifically, between 54% and 22% of global land area will experience climates that correspond to other biomes.

  6. Sahara desert (ecoregion) - Wikipedia

    en.wikipedia.org/wiki/Sahara_desert_(ecoregion)

    The Sahara Desert is the world's largest hot, non-polar desert and is located in North Africa. It extends from the Atlantic Ocean in the west to the Red Sea in the east, and from the Mediterranean Sea in the north to the Sahel savanna in the south. [2] The vast desert encompasses several ecologically distinct regions.

  7. The Sahara Desert flooded for the first time in decades. Here ...

    www.aol.com/striking-images-show-rare-floods...

    (CNN) — Striking images from the Sahara Desert show large lakes etched into rolling sand dunes after one of the most arid, barren places in the world was hit with its first floods in decades ...

  8. Polar desert - Wikipedia

    en.wikipedia.org/wiki/Polar_desert

    Polar deserts are the regions of Earth that fall under an ice cap climate (EF under the Köppen classification). Despite rainfall totals low enough to normally classify as a desert , polar deserts are distinguished from true deserts ( BWh or BWk under the Köppen classification) by low annual temperatures and evapotranspiration .

  9. Tropical desert - Wikipedia

    en.wikipedia.org/wiki/Tropical_desert

    Tropical deserts are located in regions between 15 and 30 degrees latitude. The environment is very extreme, and they have the highest average monthly temperature on Earth. Rainfall is sporadic; precipitation may not be observed at all in a few years. In addition to these extreme environmental and climate conditions, most tropical deserts are ...