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Thursday, 9 April 2015

Global Warming

The first speculation that a greenhouse effect might occur was by the Swedish chemist Svante Arrhenius in 1897, although it did not become a topic of popular debate until some 90 years later.

The twelve European Community nations agreed in 1989 to ban the production of all chlorofluorocarbons (CFCs) by the end of the century.

The Earth's average near-surface atmospheric temperature rose about 0.6 degree Celsius (1.1 degree Fahrenheit) in the 20th century.

July 2015 was the hottest month worldwide ever since records begun. The average global temperatures were 1.46 degrees Fahrenheit warmer than the 20th Century average.

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