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.
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 conditions into non-