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CNN —Rivers and streams in Alaska are changing color – from a clean, clear blue to a rusty orange – because of the toxic metals released by thawing permafrost, according to a new study. Ken Hill/National Park ServiceArctic soils naturally contain organic carbon, nutrients and metals, such as mercury, within their permafrost, the study says. “It’s really an unexpected consequence of climate change.”Researchers used satellite imagery to determine when the change in color happened at different rivers and streams. In Alaska’s Arctic rivers alone reside a variety of fish that are “critical for subsistence, sport, and commercial fisheries,” researchers wrote. Poulin said local communities voiced their concerns and observations to study researchers beginning seven years ago.
Persons: CNN —, “ We’re, , Brett Poulin, Ken Hill, Poulin, “ It’s Organizations: CNN, National Park Service, University of California, Geological Survey, Communications, Environment, UC Davis, Park Service, Water Resources Research Locations: CNN — Rivers, Alaska, Davis, Alaska’s, California, Appalachia, Alaska's Gates, Alaska’s Gates, Park Service Alaska, Chilean, Spain
UNCHARTED WATERS A Tangle of Rules to Protect America’s Water Is Falling Short The Times asked all 50 states how they manage groundwater. California’s State Water Resources Control Board provides a list of some 85 firms that help clients who have questions about water rights there. Irrigated acres 0 10 100 200 thousand 1987 2017 MISSOURI MISSOURI ARKANSAS ARKANSAS MISSISSIPPI MISSISSIPPI LOUISIANA LOUISIANA Irrigated acres 0 10 100 200 thousand 1987 2017 MISSOURI MISSOURI ARKANSAS ARKANSAS MISSISSIPPI MISSISSIPPI LOUISIANA LOUISIANA Irrigated acres 0 10 100 200 thousand 1987 2017 MISSOURI MISSOURI ARKANSAS ARKANSAS MISSISSIPPI MISSISSIPPI LOUISIANA LOUISIANA Irrigated acres 0 10 100 200 thousand 1987 2017 MO. “When Tennessee pumps groundwater, it is pumping water located within its own territory,” the 2021 ruling said. One practical problem The Times’s research identified is that state water authorities are often small operations relative to their sprawling responsibilities and the growing danger of aquifer damage.
Persons: don’t, Matthew Staver, , Christopher Neel, Chris Scheuring, Reba Epler, Mira Rojanasakul, “ We’re, Andrew Sheeley, Mike Parson, Jeff Roberson, Dave Owen, Ron Wyden, who’s, “ We’ve, Ryan Gordon, Mark Rogers, Gabriel Eckstein, Jeremy Manley, Cody Smith, Jake Parrish, Sharon Megdal, Elizabeth Cisar, , , Dr, Gordon, Ariz, Rebecca Noble Organizations: Times, MISSOURI TEXAS, VERMONT, New York Times, The New York Times, Oklahoma Water Resources Board, California Farm Bureau, Nationwide, Arup, Water Resources Control, Congress, MISSOURI MISSOURI ARKANSAS, Missouri Department of Natural, Associated Press, UC Law San, Energy, Power, WASHINGTON, Maine Geological Survey, United States Geological Survey, United States Supreme, Associated, Texas, M University, Staff, State Engineer’s Office, Yakima Herald -, Water Resources Research Center, University of Arizona, Joyce Foundation, The New York Locations: America’s, . TEXAS MISSOURI VERMONT, MISSOURI, MISSOURI TEXAS VERMONT, VERMONT, TEXAS MISSOURI, MISSOURI TEXAS, Oklahoma, Kansas, . Oklahoma, California, American, Wyoming, New Mexico, Wisconsin, Great, Mississippi, Missouri , Arkansas, Louisiana, MISSOURI MISSOURI ARKANSAS ARKANSAS MISSISSIPPI MISSISSIPPI LOUISIANA LOUISIANA, . LA, LA, Missouri, Missouri Department of Natural Resources . Missouri, Ozark, States, Kentucky, Vermont, Oregon, In Texas, United States, WASHINGTON ARKANSAS, ARKANSAS WASHINGTON, Maine, Tennessee, Memphis, Muleshoe , Texas, When Tennessee, Minnesota, Blaine, , Laramie County, Sunnyside, Wash, Yakima, Yakima Herald - Republic, Colorado, Maryland, In Illinois, Illinois, , Arizona, Phoenix, In Kansas, Washington, Hope
CNN —Rising temperatures have sucked more than 10 trillion gallons of water out of the Colorado River Basin between 2000 and 2021 – a volume about the size of Lake Mead – according to a recent study. The Tier 1 shortage took effect in January 2022; a Tier 2 shortage – due to even lower water levels at Lake Mead, the nation’s largest reservoir – was implemented in January 2023. Last summer in particular set off alarm bells when the water level in Lake Mead dropped an astonishing 20 feet over the course of four months. Mead, fed by the Colorado River, fell to its lowest level to-date in July 2022, with lake elevation of 1040 feet. “Even though there’s been a wet winter, there’s still going to be that 10% reduction in runoff.”The Colorado River flows through the Grand Canyon on the Hualapai reservation.
Persons: Lake Mead –, ” Benjamin Bass, , John Locher, Lake Mead, Mead, ” Bass, Bass, there’s, Ethan Gutmann, , ” Gutmann Organizations: CNN, UCLA, Water Resources Research, AP State, National Center for Atmospheric Research, National Oceanic, Atmospheric Administration Locations: Colorado, Lake, American, Lake Mead, snowier
The action by the Arizona Department of Water Resources stands to slow population growth for the Phoenix Active Management Area, home to 4.6 million people and one of the most rapidly expanding areas of the United States. The state's recently concluded analysis projected a water shortfall of 4.86 million acre feet (6 billion cubic meters) in the Phoenix area over the next 100 years. In response, the state said it will deny new certificates of Assured Water Supply, which enable home construction. We need to have the water supplies in order to grow," said Sharon Megdal, director of the University of Arizona's Water Resources Research Center. The Department of Water Resources said developers would need to find other sources to build.
Persons: Sharon Megdal, Megdal, Spencer Kamps, Daniel Trotta, Richard Chang, Kim Coghill Organizations: Arizona Department of Water Resources, Phoenix Active Management, Supply, University of Arizona's Water Resources Research Center, The Department of Water Resources, Central, Home Builders Association of Central, Phoenix, Thomson Locations: Arizona, Phoenix, United States, Central Arizona, Home Builders Association of Central Arizona, Colorado
The federal government has called on western states to come to agreement on water cuts. California couldn't come to an agreement with six other states on the Colorado River. The proposed cuts come as decades of drought have dwindled water supplies relied on by millions. Well, six of the seven states that are part of the Colorado River basin did come to an agreement, but California — the largest user of water from the river — wouldn't get on board. "The challenge is that we need to get back to balance in relation to water usage and what the system is producing," she said.
[1/3] An aerial view of Lake Powell is seen, where water levels have declined dramatically as growing demand for water and climate change shrink the Colorado River in Page, Arizona, U.S., November 19, 2022. "Six of the seven basin states are playing catch-up to reduce water use from the Colorado River, which is absolutely critically needed after 20 years of drought and the impacts of climate change," Moran told Reuters. When the states struck their agreement 100 years ago, it envisaged the river could provide 20 million acre-feet of water a year. Although California was deluged for weeks from late in December by seven atmospheric rivers that dumped up to 30 inches (76 cm) of rain over some areas, little of that reached the Colorado River basin. A letter signed by the six states showed they all recognised the need for a change in operating procedures for the Colorado River and deliveries from it, she added.
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