134. Global Warming

134. Global Warming

  1. Global Warming

Global Warming is defined as the increase of the average temperature on Earth. As the Earth is getting hotter, disasters like hurricanes, droughts and floods are getting more frequent. The major causes of global warming are increase in the level of carbon dioxide in the atmosphere and deforestation.

 

The increase of carbon dioxide in the atmosphere is mainly from fossil fuel emissions. Further deforestation increases the seriousness of global warming. All living plants and trees store carbon in them. When these plants die and decay, carbon dioxide is released back into the atmosphere.

 

 Nowadays forests and grasslands are cleared for various purposes, and as such enormous amounts of stored carbon enter the atmosphere and increases the global temperatures. This increase in global temperatures is causing a wide range of changes. Sea levels are rising due to melting of land ice. Amounts and patterns of rainfall are changing. The Changes in temperature and rainfall patterns have given rise to extreme heat waves, droughts and floods. Other effects of global warming include higher or lower agricultural productions, reduced summer stream flows, changes in ecosystems, species extinctions and many more.

source : Teacher Guide-10, By CDC



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