Climate change may be fueling back-to-back droughts and floods
CLIMATEWIRE | The Dallas area is still reeling from record-breaking downpours that triggered flash floods across northeastern Texas last week. The event swamped houses, submerged vehicles and prompted hundreds of emergency rescues. At least one death has been reported so far.
These may seem like head-spinning events, but they’re not entirely uncommon. And they may happen more frequently as the planet keeps on warming. Some distinct hot spots popped out. Southern North America and Europe had the greatest frequency of seesaw events worldwide. The study also found that the recovery period between dry spells and wet spells is shortening over time. Wet events are happening sooner after droughts, with less time in between the two extremes.
This means extreme rain doesn’t necessarily end a drought when it happens. If the water runs right off, the soil can remain parched after the rains end. Ultimately, the dam’s operators were able to bring the lake’s water levels back under control. Still, the event “was a very big alarm,” according to Rashid. It laid bare the difficulties of managing water resources in a climate increasingly prone to rapid mood swings.
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