Posts Tagged: UC Berkeley

Residents’ water security concerns could spur climate adaptations

Study: Climate impacts widespread across California, fueling worries over water supply

As water system managers across California devise strategies to help secure their water supply, they often face a major obstacle to implementing those measures: a lack of interest or will to act among community members.

“One of the things that the literature has found is that even if water system managers and local decisionmakers are really worried about climate change and water security, a lot of the adaptation strategies that they have in their toolbox actually require support from residents,” said Kristin Dobbin, a UC Cooperative Extension specialist focused on water justice planning and policy.

Because popular support is essential for realizing many water-related adaptations – from changing the rate structure to approving bonds for new infrastructure – Dobbin and her colleagues recently published a paper looking deeper at residents' experiences of, and concern about, climate impacts to household water supply.

Through a drinking water-focused portion of a long-term panel survey administered by California State University, Sacramento, scholars in the Household Water Insecurity Experiences research network had the opportunity to query Californians on how they are experiencing the climate crisis at their taps. Specifically, the researchers sought to analyze respondents' perceptions of future climate risks to water security.

“As a group that studies drinking water access in California, we're often looking at the system level and community level,” said Dobbin, based at the UC Berkeley Department of Environmental Science, Policy and Management. “So it was exciting to dive into the household level and understand what's happening at a more individual level.”

Climate impacts seen ‘up and down the state'

The statewide survey, conducted in spring 2021, elicited 704 responses from the panelists, representing every census region in the state and nearly every county. More than one-third (34%) of respondents said that their water supply had been affected by an extreme weather event in the past five years. Given the timing of the survey, drought was unsurprisingly the most frequently mentioned impact. Importantly, these climate impacts were felt across California.

“There is an inclination to assume that drought and other impacts are a geographically bounded issue, but what we really see is that is not the case,” Dobbin said. “These impacts are happening up and down the state, all the way to the Oregon border.”

Overall, 85% of respondents reported that they were concerned about the long-term reliability of their water supply. Crucially, the study also indicated that residents were making the connection between climate impacts and risks to their future water security.

“The more impacts they reported, the more concerned they were about future supply and reliability,” said study co-author Amanda Fencl, a senior climate scientist with the Union of Concerned Scientists.

Droughts and heat waves, in particular, seem to increase residents' concerns over water supply the most. Dobbin suggests that framing the need for water-security adaptation strategies around those specific weather events could be particularly useful in marshaling community support.

Knowing the level of concern within the community – and understanding the best way to convey the urgency of climate adaptation measures – could be a boon for local managers seeking to gain public backing for more expensive water projects. Such projects might include self-sufficiency measures that reduce reliance on imported water from other parts of the state.

“That could bolster some water managers to have more confidence in using climate change and extreme events as a way to motivate ratepayers to get on board with these bigger investment decisions,” Fencl said.

Study highlights avenues for more research

While flooding barely registered as a climate impact in the 2021 survey results, Dobbin said that the responses would likely be very different today, after atmospheric rivers inundated the state this past winter. Floodwaters can damage water treatment plants – and storms can knock out power to private wells and larger water system treatment and distribution facilities.

In fact, from the 2021 survey, power outages due to utilities' wildfire prevention policies were the climate impact most frequently mentioned in the “other” category, highlighting for researchers the need to consider and plan for the interconnectedness of water and power systems.

“People forget about the interplay between a reliable electric grid and the ability to run water in your house and the ability for water systems to pump and treat water,” Fencl explained. “When we think about disaster response and disaster preparedness, we need to be a bit more holistic.”

The researchers also pointed to significant differences in experiences of climate impacts across gender and racial demographics, with Latino, Asian American Pacific Islander and LGBTQ+ respondents reporting higher rates of impacts. Given the relatively small sample sizes, however, Fencl said there needs to be larger – and more inclusive – surveys to get a clearer picture of those disproportionate impacts.

Even still, Dobbin added that their study serves as a reminder for scholars, water managers and policymakers to re-center community members, in all their diversity, as key players in the push for more effective and sustainable climate adaptation strategies.

“One of the takeaways from the paper is that we can't forget about the role of the public in this conversation – and we can't bypass the public,” Dobbin said. “The bottom line is that most of the adaptations that we have available to us require some level of residential involvement.”

In addition to Dobbin and Fencl, authors of the study, published in the journal Climatic Change, include Gregory Pierce, UCLA Luskin Center for Innovation; Melissa Beresford, San Jose State University; Silvia Gonzalez, UCLA Latino Policy and Politics Institute; and Wendy Jepson, Texas A&M University.

Teaching Kitchen course helps improve college students’ food security

Cooperative Extension researcher: Nutrition course a boon for UC Berkeley students

College students across the nation are struggling to meet their basic food needs. Within the University of California system of 280,000 students, 38% of undergraduate students and 20% of graduate students report food insecurity.

As part of the UC Global Food Initiative, in 2015 the Nutrition Policy Institute (a UC Agriculture and Natural Resources statewide research center) identified student food insecurity as a UC systemwide problem, prompting the UC Regents and campuses to collectively address the issue.

All 10 UC campuses now have on-site basic needs centers, providing food, emergency housing and support services. The UC system and campus working groups recognize that meeting basic needs, such as food, is a multidimensional challenge.

In response to the 2022 White House Conference on Hunger, Nutrition, and Health, which called for national efforts to reduce diet-related disease and food insecurity, UC renewed their commitment to cut the proportion of students facing food insecurity in half by 2030. Campuses will partner with local counties to maximize enrollment in the Supplemental Nutrition Assistance Program (also known as CalFresh in California), provide food for students who do not qualify for CalFresh, and allocate campus food resources to historically underserved student populations.

NPI's collaborative researchers continue to monitor the impact of these efforts, in addition to other interventions, such as supporting students in building basic culinary skills, to improve food security. One multipronged approach to address food insecurity at UC Berkeley is a 14-week course on Personal Food Security and Wellness with a Teaching Kitchen laboratory component.

Sarah Minkow, who teaches the Personal Food Security and Wellness course at UC Berkeley, shared that students learn about nutrition and gain culinary skills through the Cal Teaching Kitchen.

The curriculum is designed with consideration for the time, cost and convenience of healthy eating. Discussions include food safety, calculating nutrient needs, mindful eating and reading nutrition labels. The Teaching Kitchen laboratory brings the lessons to life through knife skills, “no-cook” cooking, microwave cooking and sheet pan meals.

Minkow enthusiastically highlighted her students' “overwhelmingly positive [response to the] lecture and lab,” suggesting the benefits of an interactive learning environment to garner student engagement.

“Students often give feedback that they wish this was a required course for all UC Berkeley students,” said Minkow. She noted one barrier to reaching more students: capacity of the Teaching Kitchen space.

Susana Matias, a Cooperative Extension specialist at the UC Berkeley Department of Nutritional Sciences and Toxicology and collaborative researcher with the NPI, evaluated the impact of the Personal Food Security and Wellness course at UC Berkeley.

Matias reported that increasing food literacy and culinary skills among students has shown to increase intake of fruits and vegetables, and frequency of cooking, and reduce the number of skipped meals. Her study on the impact of the 14-week nutrition course also found a significant decrease in student food insecurity.

Across the UC System, students are benefiting from their campus Teaching Kitchens, including UC Berkeley, UC Davis, UCLA and UC Riverside. Other campuses such as UC San Diego, UC San Francisco, UC Santa Cruz and UC Santa Barbara offer basic student cooking classes as well.

Katherine Lanca, UC Global Food Initiative fellow working with NPI, attended the 2022 Teaching Kitchen Research Conference as part of her fellowship to learn about the latest research on teaching kitchens supporting equitable health outcomes.

The conference was hosted at UCLA by Harvard T.H. Chan School of Public Health Department of Nutrition in association with the Teaching Kitchen Collaborative. Teaching kitchens are a promising approach to supporting food security and cultivating lifelong habits, especially among a college student population.

Leaks an untapped opportunity for water savings

Reducing leaks a cost-effective way to save urban water without draining utilities

Before a drop of treated water in California ever reaches a consumer's faucet, about 8% of it has already been wasted due to leaks in the delivery system. Nationally, the waste is even higher, at 17%. This represents an untapped opportunity for water savings, according to a study from the University of California, Davis.

The study, published in the journal Environmental Research Letters, is the first large-scale assessment of utility-level water loss in the United States. It found that leak reduction by utilities can be the most cost-effective tool in an urban water manager's toolkit, provided utility-specific approaches are used.

“When I first heard about ‘leaks' I thought it sounded boring, but leaks are a huge component of our water systems and have a larger opportunity than many other water-saving methods to make an impact,” said lead author Amanda Rupiper, a postdoctoral scholar with the UC Davis Center for Water-Energy Efficiency. “As the first state to regulate its water losses, a lot of eyes are watching California, and this is an opportunity to impact policy here and elsewhere.”

Amid a multiyear drought, the passage of Senate Bill 555 in 2015 made California the first in the nation and among the first in the world to require water utilities to regulate their water losses.

Be specific

Using data from more than 800 utilities across California, Georgia, Tennessee and Texas, the authors characterized water losses across the country. They developed a model to assess the economically efficient level of losses, and used that model to compare various water loss regulations and modeling approaches.

The study found that one-size-fits-all approaches to leak management are not effective, economical or equitable for utilities, which vary in size and resources. Uniform approaches could lead to the mismanagement of urban water losses. However, applying utility-specific performance standards can deliver a similar amount of water savings at a profit for both utilities and society.

“Regulations that impose a uniform standard across all utilities will result in water reductions that are too stringent in some cases, too relaxed in others, and too costly overall,” the paper concludes.

Saving drips without draining utilities

Ideally, no leaks would occur in a system. However, while some leaks are obvious and accessible, others can be harder and more cost-prohibitive for some utilities to find and repair. The authors' model assessed when utilities could save the most water for their dollar to find and fix leaks in the system.

They found that for the median utility, it is economically efficient to reduce water losses by 34.7%, or 100 acre-feet per year. The median cost of water savings from leak management is $277 per acre-foot — cheaper than most traditional water management tools, including conservation campaigns and rebate programs.

“It's cost-competitive to do this and should be part of the profile of how we manage our water,” Rupiper said. “We tend to think of leaks as being a little drip, but leaks are not inconsequential. Drips add up to big flows, and we can't ignore them anymore.”

The study's co-authors include Frank Loge, Joakim Weill and Katrina Jessoe of UC Davis, and Ellen Bruno of UC Berkeley.

UC Berkeley College of Natural Resources receives $50 million gift

The College of Natural Resources at the University of California, Berkeley, has been renamed the Rausser College of Natural Resources in honor of a landmark $50 million gift by Gordon Rausser, former dean of the college and the Robert Gordon Sproul Distinguished Professor Emeritus of agricultural and resource economics at UC Berkeley.

The gift, the largest donation ever received by the college and the largest naming gift of any academic unit at UC Berkeley, will support the school's land-grant mission to take on key economic, social, environmental and health challenges facing the state and the nation. Major initiatives led by the college include mitigating and adapting to climate change, accelerating the clean energy transition and improving food security and nutrition for all. 

“The state of California, and the nation as a whole, face enormous environmental risks today that didn't exist 20 years ago, and we as a society haven't found the will to address them squarely,” Rausser said. “Rausser College has some of the best economists in the world and some of the best scientists in the world, and by working together, as they must, they uniquely position the college to provide not only the fundamental science, but also the practical solutions, needed to tackle these challenges.” 

Rausser's gift is a major component of UC Berkeley's landmark $6 billion “Light the Way” fundraising campaign, which officially launched Saturday, Feb. 29th.

“Gordon Rausser's incredible contribution of his own personal resources to support the mission of UC Berkeley and Rausser College is an unparalleled vote of confidence in the college, the university and our mission,” said Chancellor Carol Christ. “Gordon's legacy of outstanding leadership at the college in and of itself left an indelible mark on our campus and community. His willingness and ability to now provide a strong financial foundation for the college's future is a contribution whose true value is beyond measure.”

The majority of the funds will create an unrestricted endowment that can be used at the direction of the dean, in consultation with faculty leadership, to support a variety of needs across the college's five departments — from supporting graduate students to launching new interdisciplinary research programs.

In addition, a portion of the gift will be used to establish the Gordon Rausser Endowed Chair in the Department of Agricultural and Resource Economics, where Rausser served for over four decades. Another portion will help set up a Rausser-Zilberman Program Endowed Fund for the Master of Development Practice (MDP) Program, which will support students, curriculum enhancements and field opportunities abroad. 

“An endowment gift of this size and nature provides the college with a permanent funding source that will fuel innovation and creativity, enhance the quality of our programs and help us stay competitive — it is truly extraordinary,” said David Ackerly, dean of Rausser College. “We will invest in graduate student support to recruit and train the world's best scholars and support innovative interdisciplinary research to tackle major problems at the state, national and global levels.”  

Other priorities include faculty recruitment and retention, equity and inclusion programs and curriculum innovations, Ackerly said.

More than 40 years of commitment to Berkeley

Rausser first joined the Berkeley faculty in 1978 after leaving his faculty position at Harvard University. He went on to  serve as chair of the Department of Agriculture and Resource Economics on three separate occasions before being appointed dean of the College of Natural Resources in 1994. As dean, Rausser oversaw a massive expansion and reorganization of the college, growing the number of faculty at the college by approximately 20%. 

Rausser foresaw the need to increase the college's fundraising enterprise, and under his leadership the college greatly expanded its philanthropic activity. During his time as dean he worked in partnership with the alumni community to create eight new faculty endowed chairs. Today, these endowed chairs are a crucial tool for recruiting and retaining the highest-quality faculty. He also spearheaded the Berkeley-Novartis Agreement, a creative research and development agreement between the College's Department of Plant and Microbial Biology and the Novartis Agricultural Discovery Institute to advance fundamental research in plant biology and genomics. The Berkeley-Novartis Agreement was novel at the time and laid the groundwork for future public private partnerships.

Outside of Berkeley, Rausser has distinguished himself as an economic and policy adviser to the U.S. government and the state of California, as a business consultant and venture capitalist and an entrepreneur. While on academic leave, he served as senior economist on the President's Council of Economic Advisors (1986-1987) under Ronald Reagan and subsequently became chief economist of the U.S. Agency for International Development (1988-1990). His accomplishments also include co-founding Emeryville-based OnPoint Analytics, which provides business consulting services specializing in expert testimony in economics, data analytics, finance and statistics, and co-founding with Berkeley colleagues the Law and Economics Consulting Group. 

He is the recipient of 29 academic research, teaching and leadership awards. The most recent of which is having his professional society — the Agricultural & Applied Economics Association (AAEA) — honor his work by naming the conference keynote, in perpetuity,  in recognition of his lifetime research achievements and exceptional intellectual leadership of the profession. The first Rausser Keynote address will take place this year at the AAEA annual society meetings. 

Rausser said the gift is a continuation of his more than 40-year commitment to the campus and its public mission — and that his success as a business leader and entrepreneur enabled him to make it happen. 

“Personally, I can think of no institution in California that's had a greater impact on our past, or has a greater power to shape our future, than Berkeley has, and I take great pride in the fact that Rausser College is one of the cornerstones of this remarkable institution,” Rausser said. “I know what the college  is capable of, given the right resources, and I want to ensure that the college achieves an unparalleled level of excellence.”

Fighting drought with soil

A team of University of California scientists recently received a $1.69 million grant to use several UC agricultural research stations to study an often overlooked tool to fight the drought: soil.

The team, led by Samantha Ying, an assistant professor of environmental sciences at UC Riverside, received the grant from the University of California Office of the President.

The funding will allow for the establishment of the University of California Consortium for Drought and Carbon Management (UC DroCaM), which will design management strategies based on understanding soil carbon, the soil microbiome and their impact on water dynamics in soil.

The researchers will conduct field and lab research on microbiological, biophysical, and geochemical mechanisms controlling soil formation and stability under different row crops (tomatoes, alfalfa, wheat), farming practices (carbon inputs and rotations) and irrigation methods (furrow and flood, microirrigation).

Information on mechanisms will be integrated into a regionally-scalable predictive model to describe soil carbon dynamics and estimate the response of agricultural systems to drought.

Field research will initially be conducted at three UC Research and Extension Centers (Kearney, West Side and Desert) the Russell Ranch Sustainable Agriculture Facility near UC Davis.

Recommendations will then be made for broader monitoring and field experiments throughout the state based on input gained from local growers and citizens at workshops at the agricultural research stations. Ultimately, the hope is to expand and involve all nine research and extension centers from the Oregon border to the Mexican border.

“Having agricultural research stations throughout the state is a huge part of this project,” Ying said. “It is going to help us create one of the best research centers in the country focused on soil and drought.”

There is also a public engagement component. Citizens will be recruited to participate in workshops to learn how to monitor and sample their local soils. Information will then be imputed into an online soils database that will help create a map of the biodiversity of agricultural soils in California.

Ying's collaborators are: Kate Scow and Sanjai Parihk (UC Davis); Eoin Brodie and Margaret Torn (UC Berkeley); Asmeret Berhe and Teamrat Ghezzehei (UC Merced); and Peter Nico and William Riley (Lawrence Berkeley National Laboratory).

The grant is one of four awards totaling more than $4.8 million from University of California President Janet Napolitano's President's Research Catalyst Awards.

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