Jun 27 - U.S. Megadrought Is Worst for Over 1,000 Years: How Long Could It Last?

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 5 months ago '06        #1
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Jun 27 - U.S. Megadrought Is Worst for Over 1,000 Years: How Long Could It Last?


Droughts are periods characterized by abnormally dry conditions. But what are megadroughts, and how bad is the one currently affecting parts of the United States?

While there are no clear definitions of what a megadrought is, in general these events are defined as droughts that last for multiple decades, i.e. two or more, according to Ashok Mishra, a professor in the Glenn Department of Civil Engineering at Clemson University.

"Although there may be a few wet spells, most periods remained dry," he told Newsweek.


Vast swathes of the western United States are currently being impacted by a megadrought, including states such as California, Oregon, Washington, Colorado, Nevada as well as Texas, Oklahoma, Utah, Montana, and New Mexico.

"The megadrought that started in 2000 is almost in its twenty-third year," Mishra said.

Recent research has suggested that this ranks as the driest 22-year period in southwestern North America since at least 800 C.E.

"As much as 80 percent of the 17 western states that comprise the U.S. Bureau of Reclamation's area of operations have experienced severe or worse drought conditions at times during the past two decades," Jonathan Deason, co-director of the Environmental & Energy Management Institute at George Washington University, and a professor in the School of Engineering and Applied Science, told Newsweek.

"And overall, more than 20 percent of the land area in the western states has been in severe, extreme or exceptional drought conditions during the majority of time since the turn of the century," he said.

How Long Will the Megadrought Last?
Like most droughts, it is difficult to predict how long the current event is going to last, according to Rick Relyea, director of the Darrin Fresh Water Institute at Rensselaer Polytechnic Institute.

"Megadroughts are relatively rare—scientists have only documented eight megadroughts in this region during the past 1,200 years," he told Newsweek. "These eight megadroughts have lasted 20-30 years, suggesting that there may be an end to the current drought in the coming years."

But Deason said he does not expect to see much, if any, relief for a number of years because, even when the dry conditions abate, it is going to take several years of above-average rainfall for there to be a significant recovery.

"Rainfall data for 2022 show essentially no relief yet for the vast majority of these areas," Deason said.

While Earth's monitoring system models are, in principle, capable of providing insight on the occurrence, duration and severity of megadroughts, their predictions are still highly uncertain.

"There is clearly a lot of room for improvement and the research community is actively working towards that goal," Efthymios Nikolopoulos, an engineering professor at Florida Institute of Technology, told Newsweek.

visit this link https://www.newsweek.com/ .. d-last-1719472


 5 months ago '20        #2
Xiox  topics gone triple plat - Number 1 spot x1
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 5 months ago '18        #3
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It's interesting to me that we have reached a point of innovation in pretty much every industry outside of AI and nano-technology, so they started pushing these drastic changes in the energy sector around the time this "mega-drought" started. The current goal is to undo the damage that was done by capitalism by 2030, which is conveniently enough the time when past "mega-drought"s have aged out.

 5 months ago '04        #4
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 5 months ago '16        #5
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Depleting million year aqueducts to water golf courses

 5 months ago '11        #6
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Gonna have to put some legislation in place, enact policies that work to be more efficient with water and sacrifices might still have to be made

On Netflix's Explained, there was an episode on water and they showed that Cape Town drastically reduced its water consumption when there was a looming rationing. They got lucky with rain too, but it's definitely possible for to start doing better. Sometimes I think Americans might be a different breed of selfish, but in the end I think its doable

 5 months ago '17        #7
lucifershammer  topics gone triple plat - Number 1 spot x4
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I was really surprised to find out that the number one cattle state is Florida.

 5 months ago '22        #8
Booda Sack  topics gone triple plat - Number 1 spot x5
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Damn almost like when you build big cities in the desert it’s an issue

 5 months ago '21        #9
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Blew my mind when I saw them growing corn and other water intensive crops in southern Arizona. The hubris of humans knows no bounds

 5 months ago '17        #10
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You go to any comments and mention "global warming" and you'll get people flipping sh*ts and saying "it's fake GOD will provide"

like nah all our crops about to dry up

 5 months ago '20        #11
Xiox  topics gone triple plat - Number 1 spot x1
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Are you really creating fear to raise people's water bill op ?

 5 months ago '15        #12
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I went to the Antelope Canyon Marina today and the water level as of today is 300 feet at the deepest and its 160 feet below what it was in 1999. The people who work there told me it's mostly due to high demand from the big cities like L.A., Phx, Vegas etc.

The dark part is where the water used to be at.

 5 months ago '13        #13
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 Xiox said
Arguably the most expensive method and is only remotely viable for those living near the ocean. Where the money for that coming from?

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