Tag Archive for: Climate Change

Colorado Rethinks Dam Safety as Climate Change Heightens Risk for State’s 27 “Unsatisfactory” Structures

/in , , /by /The Fort Morgan Times (Fort Morgan, Colo.)by Bruce Finley

A climate-driven shift toward extreme storms has compelled Colorado officials to rethink the safety of hundreds of dams across the state that hold water and mine waste, including 27 high-hazard structures near people that already are listed as deficient.

They’re trying to calculate the potential for sudden hard rain resulting in flooding and accelerated erosion that could trigger fatal collapses.

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San Francisco Bay Dredging Fuels an Unexpected Concern: Climate Change

/in , , /by /San Francisco Chronicle by Kurtis Alexander

What began as an unremarkable bid to deepen a shipping channel in San Francisco Bay, making it easier for cargo vessels to come and go, has become a flash point in the debate over climate change.

Environmental groups are blasting plans by the Army Corps of Engineers to dredge 13 miles of waterways inside the Golden Gate because the work would benefit ships delivering oil to East Bay refineries.

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RE:BORDER 2019 Jim Madaffer - The Water We Share

Cross-Border Water Issues Need Cross-Border Solutions

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Regional collaboration and partnerships are needed to solve cross-border water issues, according to San Diego County Water Authority Board Chair Jim Madaffer.

“The Water Authority is exploring innovative solutions to increase water supply reliability for the San Diego region, but also Baja California and the Southwest,” said Madaffer during today’s opening ceremony of RE:BORDER 2019 at San Diego State University. “Those solutions include the possibility of a transborder water connection that can help both Mexico and the United States.”

Madaffer’s special presentation, “Stewarding a Shared Resource for the Bi-National Region,” was part of the two-day RE:BORDER 2019 conference. It continues Tuesday at the Universidad Autónoma De Baja California in Tijuana.

‘The Water We Share’

The theme for the inaugural binational conference is “The Water We Share.” The goal is to forge regional solutions for transborder water issues by breaking down academic, political, and administrative boundaries.

Tijuana River Watershed - RE:BORDER 2019 - San Diego

The Tijuana River Watershed covers 1,750 square miles – three-fourths lies in Mexico and includes the cities of Tijuana and Tecate. Graphic: USFWS/Tijuana River National Estuarine Research Reserve

In his opening remarks, San Diego Mayor Kevin Faulconer, was optimistic about solving Tijuana sewage issues, such as polluted runoff flowing into the Tijuana River causing beach closures in Imperial Beach and Coronado.

Momentum increasing for cross-border solutions

“I’ve never seen more momentum than I have in the past six months to solve this cross-border sewage issue,” said Faulconer. “It is a true international issue that we can solve.”

State Water Resources Control Board Chair E. Joaquin Esquivel at RE:BORDER 2019 - WNN

State Water Resources Control Board Chair E. Joaquin Esquivel delivered the keynote address at the binational conference “RE:BORDER 2019 at San Diego State University on November 25. Photo: Water Authority

‘Borders are arbitrary, but we are connected’

California State Water Resources Control Board Chair E. Joaquin Esquivel delivered the keynote address.

“The borders are arbitrary, but we are completely connected,” Esquivel told a crowd of about 200 people in Montezuma Hall. “Infrastructure investments are needed on both sides of the border, and we know with climate change, the entire watershed will be an entirely different place in the future.”

Day 2 sessions in Tijuana will examine how the transborder region will be affected by climate change – including greater risks of floods, landslides and wildfires – how reduced water for agriculture could impact the region, and on-going concerns about uneven access to water resources.

RE:BORDER is a new initiative from San Diego State University President Adela de la Torre that each year will examine a significant issue.  The RE:Border 2020 conference is scheduled for November 12 and 13.

Newsom Blocks New California Fracking Pending Scientific Review

/in , , /by /Los Angeles Timesby Phil Willon

In a victory for critics of California’s oil drilling industry, Gov. Gavin Newsom on Tuesday stopped the approval of new hydraulic fracturing in the state until the permits for those projects can be reviewed by an independent panel of scientists.

Newsom also imposed a moratorium on new permits for steam-injected oil drilling, another extraction method opposed by environmentalists that was linked to a massive petroleum spill in Kern County over the summer.

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Tijuana River Watershed and Imperial Beach. RE:BORDER 2019.

RE:BORDER 2019 Seeks Transborder Solutions For Water Issues

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A two-day conference in San Diego and Tijuana seeks to forge regional solutions for cross-border water issues by breaking down academic, political and administrative boundaries.

The theme of RE:BORDER 2019 is “The Water We Share.” RE:BORDER is a new initiative from San Diego State University President Adela de la Torre that each year will examine a significant transborder issue of the California-Baja California border region in partnership with our Mexican university and community collaborators.

The binational conference kicks off at San Diego State University at 9 a.m. on November 25 and continues the next day at the Universidad Autónoma De Baja California (UABC) in Tijuana.

Water industry officials and elected leaders from the U.S. and Mexico will join university researchers for a series of panel discussions that explore how SDSU, UABC, and regional partners – including the San Diego County Water Authority and its 24 member agencies – can contribute to innovative solutions for water-related challenges in the transborder region.

RE:BORDER 2019 at SDSU and UABC

RE:BORDER 2019 is a two-day conference in San Diego and Tijuana that seeks to forge regional solutions for cross-border water issues. Graphic: San Diego State University

Water knows no borders

“When we think about water in every dimension, whether it’s the ocean, to the rivers, to the creeks across the Tijuana River Watershed, there are no borders,” said SDSU President Adela de la Torre. “The conference is a first step toward creating solutions that allow both countries to be collaborative and learn from each other.”

San Diego Mayor Kevin Faulconer will deliver opening remarks at SDSU followed by a special presentation by San Diego County Water Authority Board Chair Jim Madaffer. California State Water Resources Control Board Chair E. Joaquin Esquivel is scheduled to deliver the keynote address. State Senator Juan Vargas will close the first day of the conference.

“Water issues and challenges require collaboration on both sides of the border to reach solutions that transcend political boundaries,” said Water Authority Board Chair Jim Madaffer. “The Water Authority and its 24 member agencies continue to develop local projects and explore opportunities that benefit the region, including Mexico and the Southwest.”

Tijuana River Watershed - RE:BORDER 2019 - San Diego

The Tijuana River Watershed covers 1,750 square miles – three-fourths lies in Mexico and includes the cities of Tijuana and Tecate. Graphic: USFWS/NOAA/California State Parks/Tijuana River National Estuarine Research Reserve

Cross border water challenges and solutions

Water reuse, access to a safe water supply, and the political and administrative boundaries in the transborder region are among the topics for discussion at SDSU.

Water Authority Assistant General Manager Dan Denham is one of several panelists who will explore transborder water challenges from the perspectives of regional stakeholders such as farmers, local and state agencies and environmental groups.

Elsa Saxod, a Water Authority board member representing the City of San Diego, will participate in a panel session that looks at the binational management of the Tijuana River Watershed.

Climate change and the transborder region

Topics for Day 2 of the conference in Tijuana include climate change, water security and risks, water and food, and water and equity.

The sessions will examine how the transborder region will be affected by climate change – including greater risks of floods, landslides and wildfires – how reduced water for agriculture impacts the region, and on-going concerns about uneven access to water resources.

“Tijuana and San Diego form a region closely linked by their economies, societies and culture,” said Natanael Ramírez Angulo, director of the Faculty of Economics and International Relations at UABC. “Understanding the problems and challenges involved in the management and use of water, an essential natural resource, must be a priority not only for governments but also for society itself, and we believe that universities can provide valuable knowledge that can help generate programs and policies that help local and federal governments to be successful in addressing this issue.”

New Analysis Spells Out Serious Legal Risk To Colorado River Water Users

/in , , /by /KUNC (Greeley, Colo.)by Luke Runyon

As climate change continues to sap the Colorado River’s water, some users face serious legal risks to their supplies, according to a new analysis by researchers in Colorado and New Mexico.

Declining flows could force Southwest water managers to confront long-standing legal uncertainties, and threaten the water security of Upper Basin states of Colorado, Wyoming, Utah and New Mexico.

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Yorkshire Water Launches World’s First Poo-Powered Pub

/in , , /by /Water & Wastewater Treatment (England)by Alec Peachey

In what will be the first time a public space has been powered by electricity made from poo, The Number Two Tavern is launching for a limited time in The Light, Leeds from 7th until 9th November.

The company is holding its first ever carbon week to spread the word and share knowledge about how we can all reduce our carbon footprint.

The power for The Number Two Tavern is coming from a ground-breaking process, called “anaerobic digestion,” which converts waste into biogas that can be used to generate heat and electricity. Yorkshire Water has charged a Hybrid Power battery with the poo-power, which is being created at Yorkshire Water’s Knostrop Recycling Centre.

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Mammoth Mountain received record snowfall in May 2019. Photo: Mammoth Mountain, Inc. California Reservoirs

Water Year 2020 Begins With Robust Reservoir Storage

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Last winter was a bountiful one in terms of water supply for California, but it’s still too early to tell whether 2020 will be as generous.

The 2018-19 winter was one for the record books, with above-average precipitation. Snow continued to fall in late-spring, with several inches or more in the Sierra Nevada and the Southern California mountains.

Ski seasons were extended into May and June, delighting skiers and resort operators.

The snowfall, and a boost from late-season storms, increased the northern Sierra snowpack in May 2019, which was “atypical,” according to Alexi Schnell, water resources specialist with the San Diego County Water Authority.

The statewide Sierra Nevada snowpack was 164% of normal, with the northern Sierra at 172% of normal on May 23, 2019.

Major California Reservoirs Above Historical Average on November 8, 2019

Most major California reservoirs are above their historical averages as of November 8, 2019. (Graphic: California DWR)

Water Year 2020 begins with robust reservoir storage

The 2019 water year (October 1 – September 30) pushed snowpack levels well-above average and swelled major reservoirs to above-average. There were more than 30 atmospheric rivers, with many making landfall in Northern California. The state’s snowpack on April 1 was 175% of average.

The California Department of Water Resources said that makes a great start to 2020.

“We start the new water year in a good place,” said Karla Nemeth, director of the DWR. “However, we all know too well that California’s weather and precipitation are highly variable. What we have today could be gone tomorrow.”

Above average rainfall in San Diego

While the biggest gains in precipitation over the past year were in Northern California, the San Diego region also benefited. Water Year 2019 ended with the region at 125% of average rainfall at Lindbergh Field. The rainfall helped increase supplies in regional reservoirs.

Schnell cautioned that the climatological cycle in California can bring several consecutive years of drought, like the 2015-17 period, which prompted mandatory water-use reductions statewide.

Above-average temperatures in California in 2019

NOAA reported on November 6 that California experienced above-average to much-above-average temperatures from January through October 2019. The average U.S. temperature during that same period was 55.5°F, (0.5 of a degree above 20th-century average) “ranking in the warmest third of the record,” according to NOAA.

NOAA reported that California has had above-to much-above-average temperatures from January to October 2019.

NOAA reported that California has had above-to much-above-average temperatures from January to October 2019. (Graphic: NOAA)

Scripps Institution of Oceanography’s Center for Western Weather and Water Extremes, or CW3E, just released an analysis that calculated the odds of water year 2020 reaching 100% of water year normal precipitation totals. The odds range from 20 to 40% of the Southwest reaching 100% of water year normal precipitation.

Odds of reaching normal precipitation for Water Year 2020. (Graphic: CW3E, Scripps, UC San Diego)

National Weather Service seasonal outlook for precipitation

The three-month seasonal precipitation outlook for November-December-January by the National Weather Service Climate Prediction Center shows below-normal to normal precipitation in Central to Northern California and equal chances of below, near- or above-normal in southern California and much of the Southwest.

The November-December-January precipitation outlook from the National Weather Service.

The November-December-January precipitation outlook from the National Weather Service. (Graphic: NWS/NOAA)

“There will always be fluctuations based on weather and other factors, but the San Diego region continues to embrace water-use efficiency,” said Schnell. “The Water Authority and its 24 member agencies continue to increase San Diego County’s water supply reliability through supply diversification to provide a safe, reliable water supply to the region.”

The World Is Getting Wetter, Yet Water May Become Less Available for North America and Eurasia

/in , /by /PHYS.orgby Dartmouth College

With climate change, plants of the future will consume more water than in the present day, leading to less water available for people living in North America and Eurasia, according to a Dartmouth-led study in Nature Geoscience. The research suggests a drier future despite anticipated precipitation increases for places like the United States and Europe, populous regions already facing water stresses.

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In Napa Valley, Winemakers Fight Climate Change on All Fronts

/in , /by /New York Timesby Eric Asimov

ST. HELENA, Calif. — Every wine region has had to deal with some manifestation of climate change, but few have had to deal with as many devastating consequences as Napa Valley.

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