Climate Change

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Climate change refers to any significant change in measures of climate (such as temperature, precipitation, or wind) lasting for an extended period (decades or longer). Climate change may result from:

  • natural factors, such as changes in the sun’s intensity or slow changes in the Earth’s orbit around the sun
  • natural processes within the climate system (e.g. changes in ocean circulation)
  • human activities that change the atmosphere’s composition (e.g. through burning fossil fuels) and the land surface (e.g. deforestation, reforestation, urbanization, desertification, etc.)

Source: EPA.

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