Tag Archive for: Climate Change

Climate’s Toll on the Colorado River: ‘We Can Weather Maybe a Couple of Years’

/in , , /by /The Arizona Republicby Ian James

Beside a river that winds through a mountain valley, the charred trunks of pine trees lie toppled on the blackened ground, covered in a thin layer of fresh snow. Weeks after flames ripped through this alpine forest, a smoky odor still lingers in the air.

The fire, called the East Troublesome, burned later into the fall than what once was normal. It cut across Rocky Mountain National Park, racing up and over the Continental Divide. It raged in the headwaters of the Colorado River, reducing thick forests to ashes and scorching the ground along the river’s banks.

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Many Scientists Now Say Global Warming Could Stop Relatively Quickly After Emissions Go to Zero

/in , /by /Inside Climate Newsby Bob Berwyn

Parts of the world economy may have been on pause during 2020, dampening greenhouse gas emissions for a while. But that didn’t slow the overall buildup of atmospheric carbon dioxide, which reached its highest level in millions of years.

If anything, research during the year showed global warming is accelerating. Symptoms of the fever include off-the-charts heat waves on land and in the oceans, and a hyperactive and destructive Atlantic hurricane season.

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Dry Start to California’s Water Year

/in , , /by /Water News Network Quoted: San Diego County Water Authority

A dry start to California’s water year is reflected in the season’s first snow survey of the Sierra Nevada snowpack. The statewide snowpack is 52% of average for Dec. 30. On average, the Sierra snowpack supplies about 30% of California’s water needs.

“The first snowpack survey of the water year points to California’s climate variability, which is why a diverse water portfolio is needed to provide a reliable supply,” said Goldy Herbon, San Diego County Water Authority senior water resources specialist. “The Water Authority and its 24 member agencies have successfully diversified water sources, and continue to expand those sources, to ensure our supply meets the needs of the region’s 3.3 million people and its $245 billion economy.”

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Why It’s Way Too Early to Worry About Rain Deficits in SoCal

/in , , /by /Spectrum News 1 Los Angelesby Jacqueline Bennett

Yes, it’s been pretty dry so far this winter, but there is no need to worry. The major winter storm that roared through Southern California Monday proved we can erase a month’s worth of rain deficit in one day. I recently explained how the climate where we live — the Mediterranean Climate — sees the majority of its annual rainfall in the winter months. In fact, a whopping 80% of Southern California’s annual rain and snow falls from December through March.

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Climate Change Spells Trouble for the Colorado River. But There’s Still Hope

/in , , /by /Los Angeles Timesby Sammy Roth

One of the best road trips I’ve ever taken was a sightseeing tour of the Colorado River, where it straddles the California-Arizona state line. I stood at the edge of Imperial Dam near the Mexican border, which diverts water to the farm fields of the Imperial Valley, then drove north to Cibola National Wildlife Refuge, home to lots of birds. I walked along the river in Laughlin, Nev., where there’s a hotel called the Colorado Belle that looks like a boat, and in Needles, Calif., where Snoopy’s brother Spike lives.

dry start-snowpack survey-water year-Guzman-primary

Dry Start to California’s Water Year

/in , /by

A dry start to California’s water year is reflected in the season’s first snow survey of the Sierra Nevada snowpack. The statewide snowpack is 52% of average for Dec. 30. On average, the Sierra snowpack supplies about 30% of California’s water needs.

The California Department of Water Resources manual survey at Phillips Station recorded 30.5 inches of snow depth and a snow water equivalent of 10.5 inches, which is 93% of the January 1 average at that location, according to DWR officials. The snow water equivalent,or SWE, measures the amount of water contained in the snowpack and is a key component of DWR’s water supply forecast.

While the Phillips Station measurement was positive, DWR’s electronic readings from 130 stations placed throughout California show the statewide snowpack’s SWE is 5 inches, or 52% of the December 30 average.

“The snow survey results reflect California’s dry start to the water year and provide an important reminder that our state’s variable weather conditions are made more extreme by climate change,” said DWR Director Karla Nemeth. “We still have several months left to bring us up to average, but we should prepare now for extended dry conditions. The Department, along with other state agencies and local water districts, is prepared to support communities should conditions remain dry.”

Water supply diversity meets regional demand

“The first snowpack survey of the water year points to California’s climate variability, which is why a diverse water portfolio is needed to provide a reliable supply,” said Goldy Herbon, San Diego County Water Authority senior water resources specialist. “The Water Authority and its 24 member agencies have successfully diversified water sources, and continue to expand those sources, to ensure our supply meets the needs of the region’s 3.3 million people and its $245 billion economy.”

The supply sources include water from the Claude “Bud” Lewis Carlsbad Desalination Plant, where ten workers volunteered to live on-site in 2020 to keep the water flowing during the coronavirus pandemic.

Sierra Nevada Snowpack-Snow Water Content

Climate change brings less snow

When the Sierra Nevada snowpack melts, it feeds into rivers and is stored in reservoirs across California. Reservoirs are tapped as needed during the dry months. However, state officials again said that climate change is affecting California’s snowpack, as more precipitation falls as rain and less as snow. And they urged Californians to make water conservation a “way of life.”

“Today’s survey brought a first glimpse of how the state’s snowpack is shaping up, but there is a lot of winter still ahead,” said Sean de Guzman, chief of DWR’s Snow Surveys and Water Supply Forecasting Section. “While the dry conditions during late summer and fall have led to a below average snowpack, it is still encouraging to have the amount of snow we already have with two of the three typically wettest months still to come.”

DWR conducts five snow surveys at Phillips Station each winter near the first of each month, January through April and, if necessary, May. Guzman said the next survey is scheduled for February 2.

dry start-snow survey-water year

Sean De Guzman (R), chief of the California Department of Water Resources Snow Surveys and Water Supply Forecasting Section, and Jeremy Hill, DWR water resources engineer, conduct the first snow survey of the 2021 season at Phillips Station in the Sierra Nevada. Photo: Kelly M. Grow/DWR

Dismal California Snowpack is Bad Sign for Water Supplies

/in , /by /San Francisco Chronicleby Kurtis Alexander

A month into California’s peak storm season, the lack of wet weather is beginning to weigh on the state’s water supply.

The snowpack in the Sierra and southern Cascades, which provides as much as a third of the water used by California cities and farms, is about 55% of average for this time of year. It hasn’t been this low at this time since 2017, when the state was emerging from a five-year drought.

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Climate Change Measures Top California Environmentalists’ 2021 State Priorities

/in , , /by /The Mercury Newsby Martin Wisckol
California is helping lead the charge in reducing greenhouse gas emissions, but more needs to be done as climate change remains the state’s top environmental issue in 2021 issue, according to top environmental lobbyists in Sacramento. Other issues on their agenda include plastic pollution, recycling, wildlife protections, and greater repair and reuse of appliances and electronic products before they are discarded.
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San Diego’s First Winter Storm Drops Snow in Mountains, Rain Elsewhere

/in , /by /The San Diego Union-Tribuneby Alex Riggins

A Monday storm that dumped much-needed rain and snow across San Diego County was expected to peter out overnight into Tuesday, according to the National Weather Service in San Diego.

Monday’s storm brought the county’s first significant traces of precipitation since the first week of November, when a North Pacific storm dropped several inches of snow in the mountains and some rain off to the west.

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Large Energy Storage Project Would Create New Reservoir Above Isabella Lake

/in , /by /Bakersfield.comby John Cox

A $3 billion pumped-water energy storage project has been proposed along Isabella Lake that would help even out power delivery from California solar and wind farms at a volume and longevity dwarfing the large battery installations envisioned for eastern Kern.

The Federal Energy Regulatory Commission is reviewing a Walnut engineering company’s plan to create a new reservoir above the lake then use pumps and underground pipes to turn it into a rechargeable dam and hydroelectric generator putting out a whopping 2,000 megawatts of power for up to 12 hours at a time.

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