Interstate highway water wars are getting hotter with climate


<スパンクラス="キャプション">Aerial view of Lake Powell on the Colorado River along the Arizona-Utah border.</ span> <span class ="帰属"> <クラス="リンクrapid-noclick-resp" href ="https://newsroom.ap.org/detail/ColoradoRiverManagement/d12a55f700714682baf7468c24e4aea4/photo" rel ="nofollow noopener" target ="_ブランク" data-ylk ="slk:AP Photo / John Antczak">  AP Photo / John Antczak </a> </ span>“src =” https://s.yimg.com/ny/api/res/1.2/DMiK7ZuEtbz17_H_kZLzGw–/YXBwaWQ9aGlnaGxhbmRlcjt3PTcwNTtoPTQ2MC42OTc5MTY2NjY2NjY3/https://s. B / aD05NDE7dz0xNDQwO2FwcGlkPXl0YWNoeW9u / https: //media.zenfs.com/en/the_conversation_us_articles_815/bd35d06580e643390b60a0a5c10a7340 “data-src =” https://s.yimg.com/ny/api/res/1.2/DMiK7ZuEtbz17_H_kZLzGw–/YXBwaWQ9aGlnaGxhbmRlcjt3PTcwNTtoPTQ2MC42OTc5MTY2NjY2NjY3/https //s.yimg.com/uu/api/res/1.2/aFXvC8E46wJ1mSZUVPT7dw–~B/aD05NDE7dz0xNDQwO2FwcGlkPXl0YWNoeW9u/https://media.zenfs.com/en/the_conversation_us_articles_815</div>
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<p>Interstate water conflicts are as American as apple pies. States often believe that neighboring states use more than a fair share from cross-border rivers, lakes, or aquifers.</p>
<p>Currently, the US Supreme Court has filed the following proceedings against the docket: <a href=Texas, New Mexico, Colorado Another thing between Mississippi and Tennessee..The court has already ruled the term for pitching cases Texas against New Mexico And Florida against Georgia..

Climate stress is causing problems. As temperatures rise, farmers need to use more water to grow the same amount of crops. A long-term severe drought will reduce the available supply.Wildfire Burns hotter and lasts longer.. Fires burn soil, reduce the ability of forests to retain water, increase evaporation from barren lands, and jeopardize water supplies.

For many years Observer of interstate water negotiations, I am aware of the basic problem. In some cases, there are more water rights on paper than on moist water, even before taking into account the shortages caused by climate change and other stresses. In my view, the winner of the water proceedings is not guaranteed, so the state should focus on reducing water usage at least as much as in the proceedings.

Western drying time

The situation is the most urgent in California and the Southwest, and is currently “Extreme or exceptional “drought conditions..California Reservoir Half water After the rainy season.Sierra Snow Pack 60% normal.. In March 2021, federal and state agencies overseeing California’s Central Valley and State Water Projects, each covering hundreds of miles of regional water systems, said:Remarkably dark warningAbout reducing the water distribution of farmers.

The Colorado River basin Drought that started in 2000..Experts How long it can last.. What is certain is “River law– A set of rules, regulations, and laws governing the Colorado River – assigned More water is supplied to the state than the river reliably provides..

The· 1922 Colorado River Compact We have allocated 7.5 million acre-foot to California, Nevada and Arizona (1 acre-foot is about 325,000 gallons), and 7.5 million acre-foot to Utah, Wyoming, Colorado and New Mexico. The treaty with Mexico has secured 1.5 million acre-foot, for a total of 16.5 million acre-foot. However, Annual ring analysis The actual annual river flow for the last 1200 years Approximately 14.6 million acre feet..

The inevitable train wreck hasn’t happened yet for two reasons.First, the lake Mead And Powell Two of Colorado’s largest reservoirs can hold a total of 56 million acre feet. This is about four times the annual flow of the river.

However, the conversion and increased evaporation due to drought Lower the water level in the reservoir.. As of December 16, 2020, both lakes were less than half full.

Second, Upper Basin (Utah, Wyoming, Colorado, New Mexico) has never used a full quota. But now they want to use more water. Wyoming has several new dams on the drawing board. So is Colorado, which is planning a new transformation from the source of the Colorado River to Denver and other cities on the eastern slopes of the Rocky Mountains.

The southwestern United States and much of California have been hit by extreme or exceptional droughts.

The southwestern United States and much of California have been hit by extreme or exceptional droughts.

Utah bets claims

The most controversial proposal comes from one of the fastest growing regions in the United States, St. George, Utah. There are about 90,000 residents and many golf courses here.St. George Very high water consumption rate and very low water price.. The city is proposing to increase its water supply as follows: Pipeline 140 miles from Lake PowellWill carry 86,000 acre feet a year.

To be honest, it’s not a lot of water and doesn’t exceed Utah’s unused quota from the Colorado River. But six other Colorado River basin states protested as if St. George wanted their firstborn.

In a joint letter dated September 8, 2020, other states told the Home Office that all seven states “Agreed on legal and operational concerns.. This letter is ” Multi-year proceedings.. “

Utah blinked.The state, which had previously claimed a rapid pipeline review, asked federal authorities on September 24, 2020. Delay the decision.. But Utah hasn’t given up. In March 2021, Governor Spencer Cox said Colorado River Authority, UtahArmed with a US $ 9 million Legal Defense Fund to protect Utah’s share of the Colorado River water. One observer said, “Huge and huge proceedings.. “

How huge is it? In 1930, Arizona sued California. Spectacular battle It didn’t end until 2006.Arizona won by finally securing Fixed allocation from water allocated to California, Nevada, Arizona..

Proceedings or protection

Utah may seek other solutions before taking the urgent action of appealing to the Supreme Court, which is under the court’s former jurisdiction, for interstate disputes.Water consumption per capita for water conservation and reuse Highest in the whole country..

St. George can emulate his neighbor, Las Vegas. Las Vegas paid residents up to $ 3 per square foot. Tear the lawn And replace them with native desert landscaping. In April 2021, Las Vegas went a step further to the Nevada State Assembly Outlaw ornamental grass..

The Nevada Southern Waterworks Department estimates that there are eight square miles of “non-functional lawns” in the Las Vegas metropolitan area. This is a grass that no one is walking except the mowing person.If you delete it Reduce local water consumption by 15%..

Water right proceedings are full of uncertainty. Ask Florida. Florida believed that there was a strong claim that water currents from the Apalachicola-Chatahoochee-Flint River basin in Georgia were damaging the downstream oyster fishery.

The proceedings lasted more than 20 years before the US Supreme Court completed its final chapter in April 2021. The court used procedural rules to hold plaintiffs accountable to provide “clear and compelling evidence.”Florida Couldn’t persuade the court, And left without doing anything.

This article will be republished from conversation, A non-profit news site aimed at sharing ideas from academic experts. It was written by: Robert Glennon, University of Arizona..

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Robert Glenon was funded by the National Science Foundation in the 1990s and 2000s.

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