Saturday, January 4, 2014

Global Warming – What is it?

         Rise in earth’s temperature
         Results from changes in the natural environment
         Caused by too much carbon dioxide

The Greenhouse Effect

Solar radiation from the Sun reaches the Earth’s atmosphere. The surface of the Earth absorbs most of the short-rayed isolation and later releases this heat in the form of infrared radiation into the atmosphere. Some of the heat is absorbed by particles known as “greenhouse gases.” The heat retained by the gases acts as a “heat blanket.”

Burning of fossil fuels

The burning of fossil fuels releases Carbon dioxide in the atmosphere. In the past 150 years, burning fossil fuels has caused a 25 % increase in Carbon dioxide emissions.

Carbon dioxide

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