Fact #29

Droughts are not increasing in the U.S. (NOAA) (Part 1)

According to NOAA, the EPA and numerous peer-reviewed studies, drought has not been increasing and some studies point to a decline in dryness. The reason for a possible decline in drought may due to increasing soil moisture content worldwide owing to a combination of rising temperatures and increasing CO2. The rising temperatures mean that the atmosphere can accommodate higher levels of water vapor which then lead to increases in precipitation. That is turbo-charged by the fact that increasing CO2 fertilization effect means that the pores (stomata) of the plants are smaller and the plants have reduced needs for transpiration, leading to reduced water needs and water loss.


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