Contemporary Issues in World Politics Essay Example | Topics and Well Written Essays - 1500 words

Contemporary Issues in World Politics - Essay ExampleEverything started in 1988. That year the topic of modality change was more than ever before covered in media, having caused increased public attention to the issue. In the US it was caused by James E. Hansens senate mother tongue regarding a threat of global warming. (McCright and Dunlap, 2000 500) The same year Hansens concern was supported by Margaret Thatcher, a Prime Minister of Great Britain at that time, who defined the possible risks of climate change (Carvalho, 2007 223-243).The concept of climate change itself, however, wasnt new to the world at that time. Climate of the planet has always been changing periodically, making people adjust to colder or hotter environment all the time. Probably everyone has heard about so called ice ages, when great parts of the planet were covered with ice. At the same time, such cold periods were changed by hot ones, like the Medieval Warm Period (A.D. 1000), when most parts of the planet were experiencing hot and dry hold (National Research Council, 2006 2).During the last 2000 years the most significant climate changes were the mentioned in a higher place Medieval Climate Anomaly, the Little Ice Age of 1500-1850, and the warm period of the industrial era, which is lasting during the last 100 years (ibid). These climate changes were caused by various factors, including changes in the planets orbit, changes in solar activity, and eruptions of volcanoes. (US Environmental Protection Agency, 2009) The actual warming of climate, however, is believed to be much intensified by the influence of human activity that has lead to increased levels of greenhouse gasses emissions. Greenhouse gasses, in their turn, are believed to be the cause of raise in average temperatures on the Earth.David Adam of Guardian outlines that emissions of carbon dioxide produced by human activity are the major cause of the above natural level of greenhouse effect. While before the industrial