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• Average global surface temperature may rise by 1.1-6.4 degrees in the 21st century
• Increasing global temperature will cause sea level to rise
• Increased pace of desertification is another likely result
• Significant change in precipitation will affect agriculture severely
• Mass species extinction is a frightening possibility

Global warming refers to the increase in the average measured temperature of the Earth’s near-surface air and oceans since the middle of the 20th century, and its anticipated continuation. It has been estimated that the average global air temperature near the Earth’s surface increased by about 0.75 degree Celsius in the one hundred years ending in 2005. The Intergovernmental Panel on Climate Change posits that this increase in global temperature is due to the greenhouse effect caused by the increase in greenhouse gases in the atmosphere. Solar variation and volcanoes also might have a small effect on the changes in global temperatures. These conclusions have been endorsed by scientific societies and the national academies of science of... Read more

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