Sunday, April 8, 2007

The Greenhouse effect



All serious scientists support the view that global warming is happening & caused by human activities. The scientists who don’t support this view work for the industries which are causing global warming. To understand global warming you must first understand the greenhouse effect. The greenhouse effect is a natural phenomenon. After the sun’s rays enter the Earth’s atmosphere, the earth absorbs most of it, while the rest is deflected back into space. Atmospheric gases, called greenhouse gases, absorb some of this energy. The energy trapped by these gases warms the planet’s surface, creating a greenhouse effect. However, as the amount of greenhouse gases increase, then to does the amount of heat it traps. The result of this is global warming. Atmospheric concentrations of greenhouse gases have increased dramatically since the start of the industrial revolution. Most scientists agree that the cause of this rise is human activity, in particular the burning of fossil fuels. As these gases increase, they trap more heat and the earth gets warmer.

2 comments:

Mohamed said...

Nice section saeed, I really enjoyed reading it. Keep it up =D

Saeed said...

Thanks Mohamed, hope it you find useful.