How do droughts develop and persist?
Quick Answer
Droughts begin when rainfall is too low for too long, and they can persist when hot, dry conditions and depleted soil moisture reinforce each other.
The Full Story
Drought is not just a lack of rain; it is a prolonged water shortage that can affect soil, rivers, reservoirs and ecosystems. If rainfall stays below normal, soil dries out, vegetation struggles and evaporation can increase the stress on the land. In some cases, climate patterns such as El Niño or stationary high-pressure systems can help drought conditions last longer. Drought severity is measured using rainfall totals, soil moisture, streamflow and impacts on people and ecosystems.
Key Facts
YouTube Angle
Suggested video title for this topic:
"Why doesn’t a drought end when it just rains once?"
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