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UCCE seeks to mitigate climate change’s impact on already disadvantaged communities

For UC Cooperative Extension (UCCE), attention to climate change goes beyond an increase in severe wildfires, droughts, floods and heat in California, and their impact on natural resources, agriculture and the state's economy.

The program focuses on the health and resilience of people in California, particularly those most vulnerable to climate change – those who can't afford air conditioning, who work outside on farms and in construction, those who are already disadvantaged by a low income, racial inequity or advanced age.

“UCCE climate change efforts must account for people and communities that face socioeconomic and political barriers to prepare for, adapt to and recover from the effects of climate change,” said Clare Gupta, UCCE public policy specialist.

UCCE experts discuss ways to reduce the climate change burden on already disadvantaged Californians. Left to right, UCCE small farms advisor Ruth Dahlquist-Willard, UCCE specialist in soil-plant-water relations Mallika Nocco, UC California Institute for Water Resources academic coordinator Faith Kearns, UCCE public policy specialist Clare Gupta and UC California Naturalist Climate Stewards Initiative academic coordinator Sarah-Mae Nelson.

UCCE advisors, educators and specialists are working in their local communities across the state to prepare residents to adapt to the warming climate and make changes that will help reduce greenhouse gas emissions to make climate change less severe. They convened Oct. 7-8 at UCCE's Elkus Ranch Environmental Education Center in San Mateo County to learn about projects currently underway to confront the crisis, share resources for adaptation, identify future research and education needs, and add their voices to a growing chorus of experts speaking out to protect the future of planet earth.

“We are at a momentous time,” said Janaki Jagannath, a law school student and climate activist who spoke at the meeting. “California is waking up to environmental justice problems and climate change.”

Many of UC ANR's climate change adaption, mitigation and resilience experts met at UCCE’s Elkus Ranch Environmental Education Center in San Mateo County.

The plight of underprivileged California residents at the forefront of climate change impacts became crystal clear to UCCE small farms advisor Ruth Dahlquist-Willard when she was hired during the state's devastating 2011-2016 drought.

In the summer of 2014, many small-scale family farms in the San Joaquin Valley saw their wells dry up due to dropping groundwater levels. Some Hmong farmers were calling suicide hotlines, in fear of losing their crops and livelihoods. Dahlquist-Willard said these farms, with shallower wells and limited resources to cope with the effects of drought, are more vulnerable to climate change.

“I worry about the snowpack,” she said. “Every winter during the drought, I would look at the mountains and wonder if there would be more wells going dry next summer. When surface water from the snowmelt isn't there, farmers use more groundwater. And the snowpack is probably going to be less reliable due to climate change.”

To help Hmong farmers and other small-scale farms prepare for the next drought, Dahlquist-Willard and her team began helping them with applications for the State Water Efficiency and Enhancement Program (SWEEP), which provides grants to improve irrigation systems. Improvements funded by SWEEP help farmers use less water and cut back on electricity for pumping.

So far, 38 Fresno and Tulare farmers have received SWEEP grants with technical assistance from Dahlquist-Willard's program, for a total of 878 acres.

The Sustainable Groundwater Management Act (SGMA), which goes into effect in 2020, also imperils small-scale farmers. The new law will limit both large-scale and small-scale farmers' ability to pump groundwater, however, small-scale farmers often are not in a position to influence the agencies that will be governing groundwater use.

“There will be competition for water under SGMA,” Dahlquist-Willard said. “Whether the small farms still have access to water depends on how the rules are set up.”

SGMA poses another threat to vulnerable rural community members. Experts predict the imposition of regulations on groundwater use is likely to put 500,000 to 1 million acres of California farmland out of production, reducing jobs for farmworkers and putting a strain on businesses in the rural communities where they live and shop.

Panelists speak about advancing equitable climate change policy. Left to right, UCCE public policy specialist Clare Gupta, Federico Castillo of the UC Berkeley Department of Environmental Science, Policy and Management, Sylvia Chi of the Asian Pacific Environmental Network, Janaki Jagannath of the Community Alliance for Agroecology, and Ruth Dahlquist-Willard of UC Cooperative Extension in Fresno County.

The expected shift in crops grown in California due to climate change also potentially reduces income for workers who have specialized in specific crops, said Federico Castillo, UC Berkeley agricultural ecology professor.

“They work longer hours to compensate,” Castillo said. “Their income is impacted.”

On a recent trip to Huron, a San Joaquin Valley city with highest proportion of Latino residents in the U.S., Castillo said he passed by vast solar farms that now cover formerly productive farmland.

“Solar farms are a benefit for society, but there are not local benefits. The problem is, this displaces farmworkers,” he said. “We have to think hard about economic policy. This is just one example. There are many others.”

In addition to the threat climate change poses to their employment, farmworkers are particularly susceptible to the warming temperatures the world faces. Castillo is studying the potential impact of weather extremes on people who do the planting, weeding, irrigating, pruning and harvesting that makes California's $50 billion annual agricultural output possible.

“Heat and humidity impacts ag workers negatively,” Castillo said. “It impacts the heart, liver and kidneys.”

What's more, many farmworkers don't have health insurance and don't visit medical doctors. Some, particularly those who hail from the Mexican state of Oaxaca, Castillo said, rely on home remedies, putting their health at still greater risk.

Sylvia Chi, policy director with the Asian Pacific Environmental Network, spoke about her constituency's concern about the future.

“How do we deal with labor market displacement from phasing out fossil fuels?” she asked. “We need to transition all communities.”

UC Climate Smart Farming educator Britta Baskerville, right, explains her role in UC Cooperative Extension.

Transition in farming

A large part of UC Cooperative Extension research and extension targets the agricultural industry, which joins other industries in emitting greenhouse gases into the atmosphere, resulting in our warming climate. A key part of mitigation is tied in new brands of farming that aim to address these issues: climate-smart, emergent, sustainable, regenerative and conservation farming.

A component of all these farming philosophies is soil health. Improving soil health traps more carbon underground, where it can't immediately escape into the atmosphere and contribute to increasing warming. Improving soil health has co-benefits, such as improving soil fertility, water infiltration and yield.

The CDFA Healthy Soils grant program offers financial incentives to eligible farmers for implementing soil-building practices. CDFA provided UC Agriculture and Natural Resources (UC ANR), UCCE's parent organization, with $1 million to hire climate-smart educators to provide technical assistance to farmers applying for Healthy Soils and SWEEP grants to improve their irrigation systems, plant cover crops, eliminate or reduce tilling, and implement other practices. A target in their effort is helping underprivileged farmers determine eligibility and navigate the complicated application process.

UC ANR hired nine community education specialists, who are now working with farmers in Mendocino, Merced, Glenn, Yolo, Solano, Sacramento, Santa Cruz, Kern, Ventura, San Diego and Imperial counties. Their contributions to farmers in those areas go beyond the grant applications and reach farmers that can't take advantage of CDFA grant programs.

“Because this is a new program, we have the luxury of helping figure out our role,” said Britta Baskerville, the community education specialist in Mendocino County. “We're all coming up with ways to educate farmers in climate-smart practices.”

Climate change resilience

The UC ANR Infomatics and GIS Program is supporting climate change resilience by creating an online networking platform for local governments, such as city councils and boards of supervisors, to empower their communities' resiliency efforts. Called the California Resiliency Alliance, the resources include case studies, planning guides, incident maps, and weather watches, warnings and advisories, plus a platform for sharing information across public-private sectors and across industry sectors.

IGIS is also involved is gathering peer-reviewed data sets for downscale climate projections. UC Berkeley Ph.D. student Lucy Andrews is conducting interviews to identify climate needs and social vulnerability information. The information will make the state's Cal-Adapt website, the primary repository of knowledge about the California climate of the future, an even more useful tool.

“Our strategy is to make climate data accessible,” said Andy Lyons, IGIS statewide program coordinator. “People can get climate data and decision support tailored to specific audiences.”

Diversity in the UC California Naturalist program

Director of the UC California Naturalist Program, Greg Ira, said the program is reducing barriers people face in accessing environmental education and training opportunities.
UC ANR's California Naturalist Program (CalNat) is working on extending information to, and encouraging participation by, underserved populations, said Greg Ira, CalNat director. Traditionally, the program has partnered with nature preserves, museums, botanical gardens and foundations to deliver its natural history certification course. Outreach to new partners focuses on organizations that serve diverse audiences and work to reduce barriers that people face in accessing environmental education and training opportunities, including community colleges, conservation corps and workforce development programs.

California Naturalist's new Climate Stewards Initiative, which will provide training to extend information about climate change mitigation, resilience and adaptation, is being created with diversity, inclusion and equity woven in from the outset. Trainees will learn about psychology, sociological and cognitive sciences, in addition to the hard sciences that touch climate change – meteorology, physics, natural resource management and biology.

“The certified climate stewards will be able to communicate and work with others as to how climate change will affect them. It will be an ongoing social learning community that provides a transition from a sense of helplessness to a sense of empowerment,” said Sarah-Mae Nelson, the UC Climate Stewards Initiative academic coordinator.

Traditional CalNat certification courses are provided fully in-person and partially outdoors. Climate Stewards training will be available in a hybrid online/in-person format to increase the course's availability to a wider circle of community members.

“The flexibility will increase accessibility,” Nelson said.



Posted on Thursday, October 17, 2019 at 8:49 AM

Agroforestry and Climate Smart Agriculture

Photo by Jet Kim on Unsplash

There has been much buzz and renewed interest recently in planting trees as a tool to combat both the causes and impacts of climate change. But what role do trees play in climate-smart agriculture? With respect to building healthy soils, tree canopy and...

Posted on Wednesday, October 16, 2019 at 8:53 AM

Biological control of invasive water primroses

Water primrose along the American River.

Exotic water primroses (Ludwigia spp.) are aggressive invaders in both aquatic and riparian ecosystems. The plants form dense mats over the water surface. These mats constrain navigation and interfere with recreational activities, irrigation, drainage,...

Posted on Tuesday, October 15, 2019 at 10:19 AM

Research Update: Efficacy of mechanical and chemical preseason control of herbicide-resistant Italian ryegrass

Reposted from the UCANR Sacramento Valley Field Crops blog   Summary Note Mechanical cultivation is a useful tool in controlling herbicide-resistant Italian ryegrass individuals in a rainfed wheat system but is only about half as effective as...

Posted on Wednesday, October 9, 2019 at 8:52 AM

Wildfire preparedness bill puts UC research to work

Steve Quarles and Yana Valachovic examined houses in Paradise after the devastating 2018 Camp Fire. Quarles holds up a vent screen that may have allowed embers to enter the house. Photo by Yana Valachovic

Last week, Governor Gavin Newsom signed a series of bills aimed at improving California's wildfire prevention, mitigation and response efforts.  AB 38, a bill aimed at reducing wildfire damage to communities, incorporates University of California research to help protect California's existing housing.

“Prior to AB 38, the State's wildfire building policy focus was centered around guiding construction standards for new homes and major remodels,” said Yana Valachovic, UC Cooperative Extension forest advisor for Humboldt and Del Norte counties. “How do we help incentivize homeowners to upgrade and retrofit the 10 million or more existing homes in California to help them become more resilient to wildfire? AB 38 is an attempt to start that important work and to protect Californians.”

Heat from vegetation burning close to the structure can break a window. Photo by Yana Valachovic
After wildfire passes through a community, many are left wondering why one house survives while another nearby burned to the ground. Research by UC Agriculture and Natural Resources scientists shows that building material choices, design and installation options, and maintenance can improve the odds that a house will survive a wildfire. 

AB 38, introduced by Assemblymember Jim Wood (D-Santa Rosa) provides mechanisms to develop best practices for community-wide resilience against wildfires through “home hardening,” defensible space and other measures based on UC ANR research. This bill is especially important to Wood because wildfires in 2017 destroyed lives and hundreds of homes in his district and because of his work as a forensic dentist following the Santa Rosa and Paradise wildfires.

“AB 38 was a huge effort by many partners as we sought the best policy solutions to address what is today one of our state's biggest challenges,” said Assemblymember Wood. “I could not have accomplished it without the support and guidance of the people at UC Cooperative Extension Humboldt-Del Norte, especially Dr. Steve Quarles and Yana Valachovic. Their expertise proved invaluable as we worked through this process.”

Studies conducted by Steve Quarles, emeritus UC Cooperative Extension advisor, and his continued work at the Insurance Institute for Business and Home Safety have identified building materials and designs that are more resistant to flying embers from wildfires. Embers are small, fiery pieces of plants, trees or buildings that are light enough to be carried on the wind and can rapidly spread wildfire when they blow ahead of the main fire, starting new fires on or in homes.

Evaluating the homes lost in wildfires that ravaged Paradise, Redding and Santa Rosa have also informed Valachovic and Quarles' recommendations.

Hardening a home to withstand wildland fire exposure does not have to be costly, but it does require an understanding of the exposures the home will experience when threatened by a wildfire. 

Their recommended best practices for hardening homes against wildfire can be found in UC ANR Publication 8393 “Home Survival in Wildfire-Prone Areas: Building Materials and Design,” which can be downloaded for free. More information is also at the ANR Fire website  

Vegetation and combustible mulch around this house were ignited by embers. This ignition provided sufficient heat to break the first window pane. Photo by Yana Valachovic
Posted on Tuesday, October 8, 2019 at 1:54 PM

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