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Global Warming: Causes and Solutions

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Global warming is caused by the excessive emission of greenhouse gases, like carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4) and water vapor (H2O) which are used to trap heat to maintain a certain temperature of the planet. However, the greenhouse gases accumulate too much in the Earth due to the high emissions caused by human. The average temperature of the planet increases in result. According to the information provided by "Climate Hot Map", 0.7°C was increased in the average temperature of the planet in the last century. The serious greenhouse effect is the main cause of global warming. The higher the temperature, the more the changes in the climate. Glaciers are melting in the Poles. The sea levels of the coastal regions have an obvious rise. It is easy to cause flooding when there is rainstorm and typhoon, like the recent Hurricane Signal No.10 in Macau and Hong Kong. Hence, global warming leads to a huge change of the Earth 's climates. Besides, the higher the temperature, more diseases can spread in a higher speed. The viruses and infectious diseases are more. In the ecological aspect, more animals will lose their habitats due to the loss of glaciers and iceberg, like the case of polar bears.

Global warming is the urgent problem faced by the Earth. Starting form 1950, the standard of carbon dioxide, 300 parts per million has been excessed and the percentage increase is sharp from 300 to 382 CO2 parts per million till now. Due to industrial revolution,

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