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Sample essays :: Geography
Geography
Global Warming as a Climatic and Geographical Threat.
(abstract)
...Long time ago one of the main problems on the planet became the global climate change. The Artic ice starts to melt and disappear, Latin America and South America suffer from lethal storms and floods. Europeans have to face melting glaciers, forest fires and heat waves. The tree rings and ancient coral in ice cores show that the world has not been as warm before as it is now. The warmest years were all starting since 1998. Most of these changes are influenced by human activities, as people burn the nature’s stores of coal, oil and natural gas. As a result billions of tones of carbon dioxide come into the air annually. Some scientists even suppose that these changes were caused by the dawn of agriculture. The well known phenomenon connected with global warming is greenhouse effect. Co2 is a greenhouse gas that makes the obstacle for the Sun radiation in the troposphere, the lower atmosphere. Some researches also show that cosmic ray are also connected with this effect. AS soon as the atmospheric CO2 raises the global temperatures are luckily to raise by around 2C to 5 C. As a result the ice starts to melt, changes in clouds and vegetation occur and so on. When the glaciers melt, they will certainly cause some rivers to overflow, while others will be emptied. The situations with water resources might cause conflicts in different regions....
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