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what is global warming

Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth. This is a type of greenhouse effect.
Over the past century, human activities have released large amounts of carbon dioxide and other greenhouse gases into the atmosphere. The majority of greenhouse gases come from burning fossil fuels to produce energy, although deforestation, industrial processes, and some agricultural practices also emit gases into the atmosphere.

Greenhouse gases act like a blanket around Earth, trapping energy in the atmosphere and causing it to warm. This phenomenon is called the greenhouse effect and is natural and necessary to support life on Earth. However, the buildup of greenhouse gases can change Earth's climate and result in dangerous effects to human health and welfare and to ecosystems.
Global Warming Causes: Carbon dioxide emissions from fossil fuel burning power plants , Carbon dioxide emissions from burning gasoline for transportation, Methane emissions from animals, agriculture such as rice paddies, and from Arctic seabeds ,Deforestation, especially tropical forests for wood, pulp, and farmland,Increase in usage of chemical fertilizers on croplands ,Rise in sea levels worldwide ,More killer storms,Widespread extinction of species,Disappearance of coral reefs etc


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