What Make Global Warming?

The most serious environmental emergences which we have to face today involve global warming. It means that the temperature of the earth and ocean increase gradually. It is the result of the build up of certain gases which make the atmosphere hotter. These heat-trapping gases are also called greenhouse gases.


Although carbon dioxide is said to be the cause of more than 60% of global warming, there are other substances which cause global warming as well, including methane,

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