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Federal report boosts plan to remove 4 dams on Calif river

9/19/2022

 
Federal regulators on Friday issued a final environmental impact statement that supports the demolition of four massive dams on Northern California’s Klamath River to save imperiled migratory salmon. The staff's recommendation, which largely echoes an earlier draft opinion, tees up a vote on the roughly $500 million project by the five-member Federal Energy Regulatory Commission later this year. The removal of the four hydroelectric dams on the lower Klamath River — one in southern Oregon and three in California — would be the largest dam demolition project in U.S. history. - ABC News

The Dilbit Disaster: Inside The Biggest Oil Spill You’ve Never Heard Of, Part 1

9/1/2022

 
An acrid stench had already enveloped John LaForge’s five-bedroom house when he opened the door just after 6 a.m. on July 26, 2010. By the time the building contractor hurried the few feet to the refuge of his Dodge Ram pickup, his throat was stinging and his head was throbbing. LaForge was at work excavating a basement when his wife called a couple of hours later. The odor had become even more sickening, Lorraine told him. And a fire truck was parked in front of their house, where Talmadge Creek rippled toward the Kalamazoo River. LaForge headed home. By the time he arrived, the stink was so intense that he could barely keep his breakfast down. Something else was wrong, too. - Inside Climate News
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Federal report boosts plan to remove 4 dams on Calif river

9/1/2022

 
Federal regulators on Friday issued a final environmental impact statement that supports the demolition of four massive dams on Northern California’s Klamath River to save imperiled migratory salmon. The staff's recommendation, which largely echoes an earlier draft opinion, tees up a vote on the roughly $500 million project by the five-member Federal Energy Regulatory Commission later this year. The removal of the four hydroelectric dams on the lower Klamath River — one in southern Oregon and three in California — would be the largest dam demolition project in U.S. history. The aging dams near the Oregon-California border were built before current environmental regulations and essentially cut the 253-mile-long (407-kilometer-long) river in half for migrating salmon. Migratory salmon have been hit hard by warming waters and low river flows caused by severe drought and competition for water with agricultural interests. - ABC News

Lake Powell Still Shrinking

9/1/2022

 
The second-largest reservoir in the United States now stands at its lowest level since it was filled in the mid-1960s. The view from above is sobering. Lake Powell, a key component of the western U.S. water system, is currently filled to just 26 percent of capacity, its lowest point since 1967. On August 22, 2022, the water elevation of the lake surface was 3,533.3 feet, more than 166 feet below “full pool” (elevation 3,700 feet).- NASA Earth Observatory
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Irreversible declines in freshwater storage projected in parts of Asia by 2060

8/21/2022

 
The Tibetan Plateau, known as the “water tower” of Asia, supplies freshwater for nearly 2 billion people who live downstream. New research led by scientists at Penn State, Tsinghua University and the University of Texas at Austin projects that climate change, under a scenario of weak climate policy, will cause irreversible declines in freshwater storage in the region, constituting a serious threat to the water supply for central Asia, Afghanistan, Northern India, Kashmir and Pakistan by the middle of the century. “The prognosis is not good,” said Michael Mann, distinguished professor of atmospheric science at Penn State. “In a ‘business as usual’ scenario, where we fail to meaningfully curtail fossil fuel burning in the decades ahead, we can expect a substantial — that is, nearly 100% loss — of water availability to downstream regions of the Tibetan Plateau. I was surprised at just how large the predicted decrease is even under a scenario of modest climate policy.” - Penn State
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Strip Mining Worsened the Severity of Deadly Kentucky Floods, Say Former Mining Regulators. They Are Calling for an Investigation

8/21/2022

 
Two former state and federal mining regulators say state and federal authorities should investigate the role strip mining played in last week’s devastating and deadly flooding in eastern Kentucky and the condition of the mines after the torrential rainfall. The Kentucky counties, and areas of West Virginia and Virginia, flooded by torrential rains have for decades been heavily logged and strip-mined for coal—land-use practices that dramatically alter the landscape and contribute to flooding. The recent flooding has killed at least 37 people. With strip mining, trees are the first to go. Then, hundreds of feet of rock may be  blasted away from the tops or sides of mountains to get at underground seams of coal. - Inside Climate News
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The West's historic drought is threatening hydropower at Hoover Dam

8/21/2022

 
Standing atop the Hoover Dam today, the millions of tourists who visit each year can get a real sense of the climate crisis in the West: In addition to extreme heat, the sight of so-called "bathtub rings" that envelop Lake Mead has become an unsettling reminder of where the water level once was before the region's historic drought began. The changes are "stunning to see," Kristen Averyst, senior climate advisor for Nevada Gov. Steve Sisolak, told CNN. "If people don't think that climate change is impacting them here and now, just go to Lake Mead and have a look around, because that paints a pretty clear picture of what we're up against when it comes to climate change." - CNN
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State Tensions Rise As Water Cuts Deepen On The Colorado River

8/21/2022

 
As a 23-year-old drought intensified by climate change and overallocation continue to endanger the Colorado River water supply, Arizona, Nevada and Mexico will face more reductions in their allotments, the U.S. Bureau of Reclamation announced Tuesday.  According to new projections by the Department of Interior, the river’s main reservoir, Lake Mead in Nevada, will reach record low levels in January, triggering a “Tier 2a” shortage that calls for a collective reduction in Colorado River use by Arizona, Nevada and Mexico. About 80 percent of the more than 720,000 acre-feet reduction will come from Arizona. California would not be impacted by the newly declared shortage because the reductions are based on previously negotiated levels. - Inside Climate News

Powell’s looming power problem

4/12/2022

 
Over the last two decades, climate change-induced drought and increasing water demand have depleted Lake Powell substantially: It is now less than one-fourth full. As water levels drop, so, too, does the potential energy of the falling water. That, in turn, lowers the turbines’ generating capacity and power output. In the 1990s, the dam produced as much as 7,000 gigawatt hours per year, enough to power nearly 600,000 homes. Last year, it was down to just 3,000 gigawatt hours. - HCN
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Recycled water revives a flourishing ecosystem on the Santa Cruz River in Tucson

3/29/2022

 
For much of the past century, the Santa Cruz River flowed through Tucson only when rainstorms sent muddy runoff coursing down the riverbed. Most of the time, the Santa Cruz sat parched in its channel, looking like a big dry ditch beneath the overpasses. Then on a hot summer day in 2019, the water came. Released from a pipe, the treated wastewater poured onto the sand and flowed downstream. A transformation began. Ecologist Michael Bogan hadn’t planned to study the resurgence of the Santa Cruz when he pedaled his bike down to the riverbed that day to watch the water roll down the dry channel. But as he snapped photos, Bogan was astonished to see dragonflies and damselflies soaring past and laying eggs in the water.
“This is crazy,” he said he thought to himself. “This is the first day of this ecosystem and they’re already moving in.” - AZ Central




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Arizona faces a reckoning over water

3/25/2022

 
The question now, as it has been since 1911 when the first big reservoir was completed to supply Phoenix with water, is one of longevity. Can this desert bounty be sustained for another 100 years, or even another 50? That question is more urgent and more relevant than ever. Climate change is disrupting the rules of the development game. Drought and extreme heat are emptying rivers and reservoirs, fallowing tens of thousands of acres of farmland, forcing thousands of homeowners to secure water from trucks and not their dead wells, and pushing Arizona ever closer to the precipice of peril.- HCN
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As Lake Powell Hits Landmark Low, AZ Looks to a $1 Billion Investment and Mexican Seawater to Slake its Thirst

3/20/2022

 
During his last year in office, Gov. Doug Ducey is trying to create a legacy of water security in drought-stricken Arizona. But his most ambitious effort in that quest could end up being in Mexico. In his last state of the state speech in January, he proposed an investment of $1.16 billion over the next three years to make the state “more resilient to drought, secure a sustainable water future and allow for continued growth.” The goal, he said, is to “secure Arizona’s water future for the next 100 years.”- Inside Climate News
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Road salt triggering 'massive' harm to US lakes, contaminating drinking water

2/27/2022

 
Five years ago, Hague was part of the problem. Each winter, more than 6 feet of snow fell on the upstate New York town nestled between scenic Lake George and the Pharaoh Lake Wilderness Area. Each year, the highway department dumped as much as 2,200 tons of rock salt onto 110 miles of road – nearly 2 pounds of salt for every square yard of road. And Hague is just one of more than a dozen communities that dot Lake George’s banks. Their combined use of road salt has increased the lake’s salinity nearly threefold over the past several decades, according to research by the nonprofit Fund for Lake George. The lake’s salt levels are now more than 30 times higher than more isolated lakes in the Adirondack Mountains, the group found. - USA Today
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A new tundra, engineered by beavers

2/18/2022

 
Beavers, once seldom seen in northwest Alaska, started appearing more frequently in the ’80s and ’90s. Pastor Lance Kramer (Inupiaq) traps beavers today, mostly for making fur hats. He recently asked an elder about the area’s first sightings. “They saw this thing on the tundra, and it looked like a wolverine, but it was a really long beaver,” Kramer said. “(It) had walked so far on the tundra to get up this way that it wore out the bottom of its tail.”  Now the animals — and their ponds, dams and lodges — are everywhere. Using satellite images of the Kotzebue area, scientists found that the number of beaver dams surged from two in 2002 to 98 in 2019, a 5,000% jump. And it’s not just Kotzebue: Beaver ponds doubled regionally since 2000, with 12,000 in northwestern Alaska now. Beavers, dubbed “ecosystem engineers” because of how they flood their surroundings, are transforming the tundra. - HCN
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Study finds Western megadrought is the worst in 1,200 years

2/14/2022

 
Shrunk reservoirs. Depleted aquifers. Low rivers. Raging wildfires. It's no secret that the Western U.S. is in a severe drought. New research published Monday shows just how extreme the situation has become. The Western U.S. and Northern Mexico are experiencing their driest period in at least 1,200 years, according to the new study published in the journal Nature Climate Change. The last comparable – though not as severe – multi-decade megadrought occurred in the 1500s, when the West was still largely inhabited by American Indian tribes. Today, the region is home to tens of millions of people, massive agricultural centers and some of the fastest-growing cities in the U.S. — all in an area where there's less water available than there was in the past, partially due to human-caused climate change. - NPR
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The US is losing some of its biggest freshwater reserves

1/30/2022

 
​As concerns over water scarcity grow, research published in Nature recently documents how freshwater availability has changed over the years, helping water specialists and managers pinpoint how this essential resource’s flows have been changing. Xander Huggins, a PhD candidate at the University of Victoria and Global Institute for Water Security at the University of Saskatchewan, and his fellow researchers decided to explore what exactly these changes would mean for life here on Earth.  The team examined 1,024 basins across the world to understand how water availability couples with social processes to create vulnerability in communities. The main factor they studied were freshwater stress, which is the amount of H2O that naturally leaves the watershed or basin per year; the higher the stress, the less water there is available for ecosystems and for people’s demands, according to Huggins. Following this, he and his colleagues coupled the findings with data on how freshwater storage in underground aquifers and glaciers, for example, is changing. - Popular Science / Nature

Geomorphology & Veg Change at CO River Campsites, Marble and Grand Canyons

1/13/2022

 
Sandbars along the Colorado River are used as campsites by river runners and hikers and are an important recreational resource within Grand Canyon National Park, Arizona. Regulation of the flow of river water through Glen Canyon Dam has reduced the amount of sediment available to be deposited as sandbars, has reduced the magnitude and frequency of flooding events, and has increased the magnitude of baseflows. This has caused widespread erosion of sandbars and has allowed native and non-native vegetation to expand on open sand. Previous studies show an overall decline in campsite area despite the use of controlled floods to rebuild sandbars. Monitoring of campsites since 1998 has shown changes in campsite area, but the factors that cause gains and losses in campsite area have not been quantified. These factors include changes in sandbar volume and slope under different dam flow regimes that include controlled floods, gul- lying caused by monsoonal rains, vegetation expansion, and reworking of sediment by aeolian processes. - USGS
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What a Gold Mining Mishap Taught Us About Rivers

1/13/2022

 
In 1900, gold miners working for an English investment corporation set off dynamite to blow a 5-meter gap in a 30-meter ridge. The site, now called The Kink in the U.S. National Register of Historic Places, sits on the traditional land of the Hän and Dënéndeh people. Within hours of the explosion, the river abandoned the old channel and rushed down the new one, tearing at the bedrock and more than doubling the size of the gap. Over the next century, the new channel would morph from a waterfall into a series of rapids and would reveal how bedrock canyon incision works. - EOS
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Himalayan glaciers are melting at an extraordinary rate, research finds

12/30/2021

 
Ice sheets across the Himalayas have shrunk 10 times faster in the past four decades than during the previous seven centuries. The rapid ice melt threatens agriculture and water supply for millions of people in South Asia, according to research published Monday in the journal Scientific Reports. There is scientific consensus that human-caused climate change has resulted in accelerated ice melt from glaciers and higher ocean temperatures across the world. - CNBC
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​It's Time to Drain Lake Powell

11/13/2021

 
The date is Feb. 9, 1997, and the man responsible for one of the most egregious environmental follies in human history is sitting at a restaurant in Boyce, Virginia, with the leader of the movement seeking to undo his mistake. Of the hundreds of dams Floyd Dominy green lit during his decade running the Bureau of Reclamation, none are as loathed as his crown jewel, the Glen Canyon Dam. In 1963, Dominy erected the 710-foot (216-meter) tall monument to himself out of ego and concrete, deadening the Colorado River just upstream of the Grand Canyon, drowning more than 250 square miles (648 square kilometers) in the heart of the Colorado Plateau, and inventing Lake Powell in the middle of a sun-baked desert. - Gizmodo
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PFAS are everywhere—and the EPA has a new plan to fight back

10/24/2021

 
The United States has a PFAS problem. Whether they are raining down from the sky or popping up in food packaging, the mysterious chemicals, also known as Per- and polyfluoroalkyl substances have been finding their way into our bodies and environment—sometimes at concerningly high levels. PFAS are also found in everyday cosmetics, especially in longwear and waterproof makeup items and can  accidentally be ingested overtime. PFAS can even be found in our drinking water.  PFAS are not only dangerous because they build up in the environment and in our bodies, but the chemicals are often associated with low infant birth rates and even cancer according to the EPA. In the past year, some research has connected high rates of PFAS exposure to worse COVID outcomes. Despite being such harmful toxins to people, they’re used regularly and are not historically regulated in the U.S.  To tackle this dilemma, the Environmental Protection Agency (EPA) announced a “Comprehensive National Strategy” to regulate the toxic industrial chemical. The plan describes three main strategies going forward–investing in more research on PFAS, leveraging authorities that can take action to restrict more PFAS chemicals from being released, and accelerating PFAS contamination cleanups. EPA administrator Michael S. Regan pointed out that the agency will work on holding polluters accountable in the announcement. - Popular Science

Is the Amazon near a tipping point? Three real-world studies are ominous

10/24/2021

 
Near the Freire home, there was a stream so wide that the children – aged between 5 and 12 when they arrived – would dare each other to reach the other side. They called it Jaguar's Creek. Now it's not a meter wide and can be cleared with a single step. The loss of such streams, and the wider water problems they are a part of, fill scientists with foreboding.Covering an area roughly the size of the contiguous United States and accounting for more than half of the world's rainforest, the Amazon exerts power over the carbon cycle like no other terrestrial ecosystem on Earth. The tree loss from an extremely dry year in 2005, for example, released an additional quantity of carbon dioxide into the atmosphere equivalent to the annual emissions of Europe and Japan combined, according to a 2009 study published in Science magazine. - Reuters 
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The Upper Skagit Indian Tribe Calls on Seattle to Remove the Gorge Dam

7/16/2021

 
The Skagit River runs about 150 miles through what is now British Columbia into northwest Washington, from the Cascade Mountains to Puget Sound. Along the way, three major hydroelectric dams owned by the city of Seattle — Ross Dam, Diablo Dam and the Gorge Dam — block the river’s flow. Now, as part of a once-every-few-decades federal relicensing process, the ecological alterations caused by those dams are being re-examined by scientists and regulators. The license renewal is exposing other changes, too, including how Indigenous nations are increasingly asserting their sovereignty and rights. Looked at from one angle, this regulatory process is simply a bureaucratic hoop Seattle must jump through to keep using the Skagit River to generate power. From another, however, it’s a chance to reconsider the value of the river itself. The relicensing process has triggered many different conversations on the Skagit’s future; this is one of a pair of stories that focus on a few of them. - HCN
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Severe Heat and Drought the Hallmarks of a Changing West

6/20/2021

 
Much of the American West , from parched Northern California through Arizona and New Mexico, is drying out at a record pace.
The onset of this severe drought was far quicker than previous ones — the result of a meager Sierra Nevada snowpack and early seasonal heat that evaporated the runoff needed to fill the reservoirs and rivers. “It’s difficult to point to one occurrence and say, ‘Hah, this is climate change,’’’ said John Yarbrough, the assistant deputy director for the State Water Project with the California Department of Water Resources.  But this year, the second consecutive that the nation’s most populous state will be in drought, has been different from previous ones. Yarbrough said that only 20 percent of the expected runoff from an already well-below average snowpack arrived in reservoirs. The rest evaporated during the unseasonably warm spring. - Washington Post


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Is Lake Powell Doomed?

6/9/2021

 
On Feb. 22, 2021, Lake Powell was 127.24 feet below 'Full Pool' or, by content, about 38% full. Based on water level elevations, these measurements do not account for years of sediment (clay, silt, and sand) accumulation—the millions of metric tons on the bottom. Geologist James L. Powell said, "The Colorado delivers enough sediment to Lake Powell to fill 1,400 ship cargo containers each day." In other words, Lake Powell is shrinking toward the middle from top and bottom. The lake is down over 30 feet from one year ago, and estimates suggest it could drop another 50 feet by 2026. - Lake Powell Chronicle
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