Did you know that the dryness actually helps to add to the higher temperatures during a drought? How? In normal conditions, some of the sun's energy is used up to evaporate moisture in the ground, vegetation and other various surfaces. However, when the ground is extremely dry, the sun's energy that is normally used to evaporate this moisture in the soil, goes towards adding heat to the atmosphere. In other words, during a drought, nearly all of the sun's energy goes to making it warm instead of drying the ground and various surfaces.
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