Wednesday, May 6, 2009

Scientists serve as climate detectives

Scientists have to think like detectives. They look for clues to help them understand how the world works. Then, they investigate the clues to find evidence—real facts that can give them a better idea of what is going on. Here are some of the ways that scientists gather evidence about climate, both past and present:

Weather Stations

Weather stations help us find out the temperature on the surface of the Earth. Weather stations use special thermometers that tell us the temperature. They can be set up almost anywhere on land. Weather stations also can tell us how fast the wind is moving and how much rain falls on the ground during a storm.

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