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Climate change is making droughts worse as our atmosphere heats up, scientists say | UK News

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Droughts are naturally occurring occasions, however scientists say that local weather change is making them worse.

One of the primary causes for this is that as our atmosphere heats up, it turns into far more efficient at drying out the bottom.

Professor Richard Allen, who is a professor of local weather science on the University of Reading, places it like this: “A warmer atmosphere is thirstier… and heatwaves further exacerbate the development of drought conditions.

“Also, as a result of the continents are warming so quickly, dry circumstances can worsen as a result of ocean winds can not blow sufficient moisture over the land to fulfill the atmosphere’s thirst for water.”

And this is not the one situation.

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Experts additionally say there is some proof that local weather change is affecting the jet stream, a present of air that circulates across the Northern Hemisphere.

Although there is nonetheless important debate over this, some theories recommend {that a} quickly warming Arctic specifically is altering the jet stream’s place and form, lowering its capability to hold rainfall methods to Europe, and growing the probability that it’s going to entice areas of excessive strain in place for longer intervals of time.

Of course, in some elements of the world, local weather change doesn’t suggest hotter and drier however hotter and wetter.

We’ve seen this in Australia and in Pakistan, India and Bangladesh just lately.

Often this relies on location and season, with some locations within the UK for instance experiencing each drought like circumstances this summer time and extreme rainfall and flooding earlier within the yr.

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Experts say this is broadly a part of the identical cycle that makes droughts extra excessive; a warming planet and atmosphere means extra evaporation which dries out the land.

This in flip results in extra moisture within the air, which ends, in some elements of the world, in additional excessive rainfall.

It is an advanced image, and intense rainfall, warmth and drought occasions are usually not evenly distributed the world over and even throughout continents and nations.

This unpredictability is one more a part of the issue, as a result of it makes planning and adaptation more difficult.


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