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Glaciers, Deserts & Climate Changes Essay

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Many people know of glaciers and deserts however they do not know fully understand why these two landscapes should be taken more seriously. Deserts and glaciers both play an important role in climate change (Murck et al., 2008). Scientists believe humans are partially responsible for glaciers retreating and deserts growing and shifting due to human production of greenhouse gases and the way humans manage soil and water resources (Murck et al., 2008).
A desert landscape compared to a glacier landscape share similarities and differences. A desert is defined as an arid land that receives less than 250 millimeters of rainfall or snow per year where a glacier is defined as a semi permanent or perennially frozen body of ice consisting largely of re-crystallized snow that moves under the pull of gravity (Murck et al., 2008). Now that we know a glacier is defined as a mostly permanent frozen body of ice, this does not mean glaciers don’t encounter change. Glaciers are in fact constantly changing in several ways. Snow that falls on the glaciers surface cause the glacier to change and glaciers will grow and shrink depending on changes in temperature and precipitation (Murck et al., 2008). Before glaciers can move and change they first have to be developed. Glaciers are formed from the process of snow changing from a solid to a vapor without melting and fall onto a surface which is most the time already a glacier surface (Murck et al., 2008). This snow then becomes compacted as time goes by and more and more snow ends up falling which leads to the snow becoming glacier ice. As for deserts, a common geological feature is a sand dune (Murck et al., 2008). Sand dunes are mainly hills or ridges made up of sand deposited by wind. The most common types of dunes are barchans, transverse, star, parabolic and longitudinal (Murck et al., 2008). The specific type of dunes that form at a given place depends on the amount of sand, the wind conditions and the amount of vegetation (Murck...

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