Showing posts with label Earth. Show all posts
Showing posts with label Earth. Show all posts

Wednesday, September 2, 2009

Greenhouse Effect, Climate Change,and Global Warming

The Green house Effect:
Scientists are sure about the greenhouse effect. They know that greenhouse gases make the Earth warmer by trapping energy in the atmosphere.
National Geographic:
click here

Climate Change:
Climate is the long-term average of a region's weather events lumped together. Climate change represents a change in these long-term weather patterns. They can become warmer or colder. Annual amounts of rainfall or snowfall can increase or decrease.

Global Warming:

Global warming refers to an average increase in the Earth's temperature, which in turn causes changes in climate. A warmer Earth may lead to changes in rainfall patterns, a rise in sea level, and a wide range of impacts on plants, wildlife, and humans. When scientists talk about the issue of climate change, their concern is about global warming caused by human activities.

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