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SCI 245 Deserts, Glaciers, and Climate Week 7

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Deserts 1
Deserts, Glaciers, and Climate
Axia College

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Deserts 2
Deserts, Glaciers, and Climate: Landscapes and Changes
It is no great mystery that the Earth is always changing. Talk of global warming
is inescapable, making it a moral imperative to become educated about the Earth’s
climate cycles and watch for changes and signs in Earth’s diverse landscapes. The
following is a brief sketch of desert and glacial landscapes, as well as a look at historical
and future climate changes.
Deserts VS Glacial Landscapes
Desert and glacial landscapes are very much on opposite sides of the landscape
spectrum, however in terms of adjective depiction they are related: “abstract, beautiful,
immense, remote ... and vulnerable” (Murck, Skinner, & Mackenzie, 2008, p. 376).
The desert landscapes are primarily fashioned by wind and sand, however they
are truly defined by the region’s annual rainfall. The landscapes in the desert are full of
sand, alluvial fans, playas, oases, arroyos as well as deposits of salt. Eolian, better
known as wind erosion, is the type of erosion seen in the desert. Deserts are constantly
altered and changing based on the direction of the wind. A highly noticeable example of
a changing geological feature in a desert landscape would be the dunes. Dunes are hills
or ridges of sand that are produced when the wind blows. These mounds of sand are
irregular, yet they come in five common types, barchan, transverse, star, parabolic, and
longitudinal. One way that deserts form is by desertification, the movement of desert

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