We know that changes we are making to the Earth’s climate will (and currently are) affecting weather. Some of the impacts are clear to see and easy to quantify. For instance, in some regions, droughts are becoming more severe and longer lasting, while in other locations, the opposite is occurring more precipitation is falling in heavier downbursts. Two competing issues have to be considered. First, increased temperatures are increasing evaporation rates i.e., drying is occurring. Second, increased temperatures lead to more water vapor in the atmosphere, which results in heavier rain/snow events. In regions that are currently dry, the first issue dominates, whereas in wet regions, the second is more important.
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