Atmosphere and Climate
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Atmosphere and Climate

Our atmosphere contains the air we breathe, keeps the planet at a comfortable temperature, and shields us from harmful radiation. The movement of warm and cool air triggers weather and the water cycle. Long-term weather patterns define the climate of each region. Earth's main climate zones are tropical, temperate, and polar. Scientists have concluded that recent increases in greenhouse gases are causing global warming. Many individuals, groups, and governments are taking action to slow or reverse climate change.


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