ENCHANGED GREEN HOUSE EFFECT
Man-made emissions of more than any other have contributed most to the enhancement of Earth's natural, about 60% since the late 18th century when man-made greenhouse gas began to increase. and the ave contributed about 20%, 4% and 12% respectively.
The natural eeps the Earth's surface much warmer than it would be if there was no atmosphere. in the atmosphere trap a lot of heat that would otherwise escape to space, raising the temperature.
From the end of the last Ice Age episode about 10,000 years ago until the end of the 18th century, the levels of greenhouse gases in the atmosphere remained fairly constant. Since the 200 years ago, mankind has been releasing extra quantities of greenhouse gases into the atmosphere, which trap more heat, enhancing the natural greenhouse effect.
The "enhanced" greenhouse effect is the direct result of human activities. Processes such as the burning of industrial operations and release and into the atmosphere. Chlorofluorocarbons, or are also potent greenhouse gases, and as an added danger, they also destroy the ozone layer.
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