Essay about Global Warming and Agriculture

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Global Warming and Agriculture Global warming has been a major topic of environmental concern over the past several decades. The International Panel on Climate Change (IPCC) has recently predicted a 1 to 3.5 degree Celsius increase in average atmospheric temperature above 1990 levels by the year 2100. Although this temperature increase may seem small, even an increase or decrease of a few degrees in atmospheric temperature is capable of causing drastic alterations in the agricultural process, among many other everyday issues. Though many studies have been done on the probable effects of an increase in global mean temperature, much is still unknown or only guessed at, due to a general lack of deeper understanding of Earth?s very…show more content…
As America?s cultivated lands grow dryer and dryer, farmers will be forced to increase their usage of irrigation as a means of providing their crops with the proper growing environment. However, an expected increased general demand on water supplies due to the changing climate will make less water available to farmers for irrigation. The mixture of crops and livestock grown and raised in a given region is influenced strongly by the area?s climatic conditions and the amount of water available. The warming of our climate will cause farmers to shift to crops and livestock now found in more southern locations. As the climate warms, farmers? flexibility in crop distribution is very much decreased. Another possible effect of the climate shift we are currently experiencing is an expansion of the ranges of crop destroying pests. The increased vulnerability of crops to these pests could result in greater pesticide use. Other factors that may threaten agriculture in some areas are increased heat stress, more frequent flooding, and salinization of soils caused by rising of sea levels. One of Florida?s highest cash revenues comes from farming, with produce grown on irrigated croplands accounting for most of the income. However, the lack of a sufficient dormant period caused by increased
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