Geographer Susanna Hecht, professor of urban planning at the Luskin School, has been named director of the UCLA Center for Brazilian Studies, effective July 1. A specialist on tropical development in Latin America, especially Amazonia, she also holds joint appointments in the Institute of the Environment and Sustainability and the department of geography at UCLA.
Hecht takes over leadership of the interdisciplinary research center, which serves UCLA faculty and students whose scholarship focuses on Brazil, from José Luiz Passos.
Hecht’s research focuses on the intersections of economies, cultures and land use — and the socio-environmental effects of these processes — an approach now widely known as political ecology, of which she is recognized as a founding thinker. Her work spans climate change, mitigation and the rethinking of longer-term strategies in light of globalization, intense migration and novel climate dynamics.
Her published books include “The Social Lives of Forests: Past, Present and Future of Woodland Resurgence” (Chicago, 2014; co-edited with Kathleen D. Morrison and Christine Padoch); “The Scramble for the Amazon and the ‘Lost Paradise of Euclides da Cunha’ ” (Chicago, 2013), which won the American Historical Association’s Best Book in Environmental History Award in 2015; and “Fate of the Forest: Developers, Destroyers and Defenders of the Amazon” (Chicago, 2011; co-authored with Alexander Cockburn).
In addition to journal articles and book chapters, Hecht has also written monographs published by the Center for International Forestry Research (CIFOR), the National Academy of Sciences, the World Resources Institute and Centro Internacional de Agricultura Tropical (Cali, Colombia).
She has won multiple academic awards, including the American Geographical Society’s David Livingstone Centenary Medal and the Carl Sauer Award, both for distinguished research on Latin America. She is a past member of the Institute for Advanced Study at Princeton University and holds a professorial appointment at the Graduate Institute for Advanced Development Studies in Geneva.
With cities and suburbs across the United States facing well-documented affordable housing shortages, researchers for years have studied how government planning standards affect housing costs.
Those studies often examine how planning and zoning decisions affect traffic noise, whether neighborhood amenities can be reached by foot and other factors that can make a home more or less valuable.
A new paper expands this body of research by considering the housing, schools, parks and other infrastructure that go unbuilt in favor of wide streets.
The U.S. has some of the widest streets in the world. In 20 of the most populous counties, the median residential street plus sidewalks is 50 feet wide, with the dollar value of land used for streets sometimes stretching into six figures, according to the research in the Journal of the American Planning Association.
A narrow street in Shibuya City, Tokyo. Photo by Tim Foster / Unsplash
Wide streets are less common in some other countries. Certain streets in Japan, for example, are much narrower. Developments in Tokyo since 1990 have average street widths of 16 feet, noted Adam Millard-Ball, an associate professor of urban planning at the UCLA Luskin School of Public Affairs and author of the new paper.
“One of the best ways to alleviate the housing crisis is to build more housing,” he said. “To the extent that narrower streets allow developers to build more housing, that will address the No. 1 issue with housing right now.”
The median residential street in Arizona’s Maricopa County, which includes Phoenix, is 50 feet wide, according to Millard-Ball’s sample of counties.
The median width of a residential street in Middlesex County, Massachusetts, which includes Cambridge, is 40 feet — the narrowest of the group.
The widest streets in the sample are in Cook County, Illinois, which includes Chicago. There, the median residential street is nearly 65 feet wide.
The 50-foot standard
For urban planners, a street is called a right of way. The paved section is the roadway.
A right of way includes the roadway as well as sidewalks, if any, along with space for drainage, utility poles and other public infrastructure. It’s the land usually owned by a city or county that the public has the right to use and make its way through by car, bicycle, foot or other mode. Neighbors waving hello across the sidewalk’s edge of their properties are waving across the right of way.
The median 50-foot right of way Millard-Ball documents stems from nearly a century of history in U.S. planning. After the home mortgage system collapsed during the Great Depression, the federal government stepped in and established the Federal Housing Administration in 1934.
The agency’s mortgage insurance and financial assistance for homebuyers represented “the most ambitious suburbanization plan in United States history,” wrote Michael Southworth and Eran Ben-Joseph in a 1995 Journal of the American Planning Association article that reviews the historical rise of U.S. suburbs.
To protect the government’s unprecedented investment in home ownership, mostly for white Americans, developers had to have detailed plans approved by the agency. The agency encouraged cul-de-sacs for new developments and favored plans that discouraged through traffic.
“Moreover, the FHA, unlike other planning agencies, was largely run by representatives of real estate and banking, so developers felt that its intervention protected their interests,” Southworth and Ben-Joseph wrote.
If developers wanted to build homes that would benefit from federal financial backing, rights of way had to be at least 50 feet wide, Millard-Ball explained in his new paper, “The Width and Value of Residential Streets.”
Six-figure values
To understand the value of land used for streets, Millard-Ball drew on research from the Federal Housing Finance Agency that estimates the value of quarter-acre lots zoned for single-family homes across the country. The value of the land used for streets can be substantial in places where low population density and high housing costs converge.
Santa Clara County, California, which includes San Jose, has the most valuable streets in the sample at $146,000 per tax parcel. That’s roughly 40% of the median price of an existing single-family home sold in the U.S. in April 2021, according to data from the National Association of Realtors.
“One of the best ways to alleviate the housing crisis is to build more housing. To the extent that narrower streets allow developers to build more housing, that will address the No. 1 issue with housing right now.”
— Adam Millard-Ball, UCLA Luskin
New York City, by contrast, has high housing costs but also high density — large apartment buildings are common. Tens of thousands of people live within each square mile. The land beneath streets in Queens, for example, is worth $36,000 per parcel.
At the other end of the value spectrum, streets are worth $7,000 per parcel in Bexar County, Texas, which includes San Antonio. But land values and street widths can vary greatly within counties.
Terra Vista, a small street in a subdivision 25 miles north of San Antonio, is 52 feet wide and has a land value of $43,288 per parcel. All the land under residential streets in Millard-Ball’s 20 counties is worth nearly $1 trillion in total.
Millard-Ball noted that street land value estimates per parcel are likely low for high-cost, dense cities, which often zone for multifamily buildings over single-family homes.
For example, an Italian specialty food store in the Mission District of San Francisco sold its parking lot for $3 million in 2018 — roughly $36 million per acre, by Millard-Ball’s calculation — to make way for a five-story, 18-unit building, according to the news site Mission Local.
Most U.S. counties regulate how and where new housing and business developments are built, according to the National Association of Counties, a nonprofit organization that represents U.S. county governments.
Many large cities do the same.
It would be overly costly for cities and counties to change the width of existing streets, particularly with local governments facing budget shortfalls during the pandemic.
Still, the estimates in the new paper can be instructive for planning officials in places like Bexar, one of the fastest growing counties in the U.S., as they permit developments to accommodate new and current residents.
“The values are an indication that cities should be making it easier to use streets for something other than roadways and parking,” Millard-Ball said. “A good analogy is that during COVID, one use of streets has been for outdoor dining. It’s recognition that this land is more valuable to the community if we can use it for people to get together and eat in a safer environment outdoors, than as a parking space or travel lane for cars.”
He continued: “The point is that desolate asphalt is doing nobody any good — not the city, not property owners, not anyone. Cities are often keen to widen the right of way with new developments. Say you want to develop a new apartment building. Often, the city will say, ‘Sure, but you have to give up some land so we can add a turn lane, or widen the sidewalk.’ If cities can widen the right of way, why can’t they narrow it in exchange for improvements that will benefit the public?”
Indeed, when a new residential building goes up, cities commonly require developers to widen streets, according to a 2017 paper in the Journal of Transport and Land Use by Michael Manville, another UCLA Luskin urban planner.
In the paper, Manville looked at how the requirement played out in Los Angeles from 2002 to 2012. He found the city’s predictions of increased traffic with the arrival of new buildings were often wrong, and “the standards the law is based on are in some ways unverifiable. Thus the law likely does little to reduce congestion and probably impedes housing development.”
Flexible design
City and county planning standards vary and change, but the federal 50-foot standard still often dominates residential street design. Still, it’s not always true that counties with more land to expand, like those in Texas, have wider streets. Dallas County, for example, specifies that new residential streets in subdivisions be at least 50 feet wide. The median width of residential streets there is exactly 50 feet, Millard-Ball finds.
A surveyor’s chain owned by John Johnson, appointed Surveyor General of Vermont in 1813. Photo by John Johnson Allen / National Museum of American History
Residential streets in Chicago, meanwhile, are typically 66 feet wide, according to city design standards. That roughly matches the length of the typical surveyor’s chain as the city grew throughout the 1800s and early 1900s. The surveyor’s chain was a tool made up of interlocking metal bars that land surveyors used to measure and mark the shapes of streets to be built.
Uniformity in street design made sense as the nation was expanding and infrastructure technologies were less advanced. But the takeaway for Millard-Ball is that maintaining rigidity in street design means fewer amenities and, potentially, less housing.
He wonders, for example, whether more streets could be built with parking cutouts only where there are no private driveways — providing a unique residential landscape alongside opportunities to use more of the built environment for activities other than driving.
“That would make construction drawings more complex,” Millard-Ball said. “The tradeoff is visual interest — and saving a lot of valuable land.”
The prospect of narrower streets raises the question of whether emergency vehicles would be able to pass, though some planners, and at least one report from the U.S. Department of Transportation, suggest smaller emergency vehicles could be an answer.
This article first appeared on The Journalist’s Resource and is republished here with slight revisions for local style under a Creative Commons license.
Growing up amid the ancient redwoods of Sonoma County, Amy Stanfield developed a deep connection to trees, even greeting her favorites by the names she gave them as a little girl.
“You can stand in the forest and then look up and you just have this very awe-inspiring feeling looking up at these insanely tall, old, historic trees,” Stanfield said. “Redwood trees are really just a symbolic and beautiful part of my life.”
So when the third-year public affairs major spotted a new course on offer in spring quarter — “Trees in the City,” taught by Associate Professor of Urban Planning Kirsten Schwarz — she quickly enrolled.
“I think all the students came to this course with a love of trees,” Schwarz said. “I don’t want them to lose that, but I do want them to think a little bit more critically about the role of trees in the city, and who might benefit from them.”
Trees tell a complex story, touching on water use, climate change, gentrification and even mundane considerations like sap falling on cars.
Schwarz’s course examines urban forestry through an environmental justice lens, weaving together social sciences, natural sciences and fieldwork with the Los Angeles nonprofit TreePeople.
It’s one of several innovative courses that illustrate the UCLA Luskin public affairs major’s emphasis on deep engagement in civic life and rigorous scholarship that draws from many disciplines.
Also new in spring 2021 has been Public Affairs 125, “Creating Safe and Welcoming Schools,” taught by Social Welfare Professor Ron Avi Astor, an authority on school safety and student well-being.
Astor, who has a joint appointment with the UCLA School of Education and Information Studies, said he designed the curriculum with a holistic approach to enhance how universities prepare future educators, social workers, psychologists, administrators and policymakers.
“The new vision proposes that schools won’t just respond to crisis,” Astor said. “It will recognize the current inequities in the system and create school settings that uplift and inspire students — graciously creating a community of educators, peers and families that will elevate the aspirations of each child.”
The course incorporates lessons from more than a year of upheaval endured by schools around the country.
“The dual global pandemics of COVID-19 and our national reckoning with systemic racism after the murder of George Floyd focused a bright light on many blind spots we have as a society when we discuss and research school safety,” Astor said. “The two pandemics highlighted well-documented health, racial and geographic inequities, and started a widespread public conversation about them.”
Students in Public Affairs 125, “Creating Safe and Welcoming Schools,” learn to develop strong policy positions and convey them to the public using the power of media.
With her keen interest in education policy, Stephanie Tapia Onate was glad she could take the new course in her final quarter as an undergraduate.
“I like that it focused on improving the school environment. As a former student of the LAUSD public school system, I know that there’s a lot of work to be done,” said Tapia Onate, who will soon graduate with a public affairs bachelor’s degree, then pursue a master of public policy at the Luskin School in the fall.
What sets “Creating Safe and Welcoming Schools” apart, she said, is the opportunity to personally engage with a wide variety of experts and to develop the practical skills needed to deliver a policy message to the general public.
Astor’s lineup of guest speakers comes from an impressive array of disciplines, including education, public policy, social welfare, psychology, neuroscience, medicine and law. Scholars from UCLA and across the nation, as well as top officials from the Los Angeles Unified School District, have spoken to the class on topics that included racism, bullying, weapons and drug use, mental health and the unique needs of LGBTQ, homeless or undocumented students.
The course has an expansive view of how to make schools a safe space not just for students but for teachers and staff, Tapia Onata said.
“Teachers do deal with a lot of secondary trauma and sometimes they’re often forgotten in the conversation about mental health resources in schools,” she said. “They are one of the communities at school that we do need to support.”
Students in Astor’s class learn to develop strong policy positions then communicate them to the public through op-eds, TED Talks and TikTok campaigns.
Tapia Onate chose to create a series of one-minute policy videos on TikTok, a platform now used frequently for educational outreach as well as entertainment.
“It’s straight to the point, it can deliver your message really fast, and people are more likely to remember what you say in a short video,” she said.
Immersion in civic life is also central to the “Trees in the City” curriculum. During their quarter-long partnership, students worked with TreePeople to fill the nonprofit agency’s most immediate need — turning a voluminous amount of information about the benefits of trees into messaging tailored to local communities.
One team of students developed a school curriculum on the importance of trees that aligned with Next-Generation Science Standards; they even identified sources of potential funding that TreePeople could pursue.
“Students were really interested in ways that environmental stewardship and curriculum centered around trees could be introduced early on,” Schwarz said.
Amy Stanfield said her team chose to highlight the wisdom of those who “lived on the land the longest and most successfully” — Los Angeles’ Indigenous communities.
Through case studies and an infographic, the team demonstrated how to incorporate time-tested traditions into Westernized systems and provided resources to residents who want to connect with local Indigenous leaders.
“We wanted to center our project on amplifying Indigenous people’s voices in the science world and in this type of urban ecology setting,” Stanfield said.
In a happy coincidence, her work with TreePeople will continue next year as she interns with the nonprofit group for her senior capstone research project.
“Trees in the City” has been a perfect match for Stanfield’s interests, which blend ecology, policy and urban planning, as well as film. She is grateful for the personal attention that Schwarz gives each of the 14 students in the upper-division class, and for the interactive curriculum that has deepened her understanding of urban greenspaces.
“Everyone in my college life can’t hear me say enough about it,” Stanfield said. “I get done with class and say, ‘You guys, my tree class is making me so happy!’ ”
Disparities in unpaid bills predate COVID-19 but have deepened since the pandemic’s outbreak. Using data from a November 2020 California State Water Resources Control Board survey, the researchers found one-quarter to one-third of all Los Angeles households faced financial difficulties paying for their utilities.
“We didn’t expect the magnitude to be this big,” said Silvia R. González, co-author of the study and a senior researcher at the Luskin Center for Innovation. “For many families, this means choosing between keeping their lights on or skipping meals or medical treatment.”
The debt burden is unevenly distributed across Los Angeles — 64% of the population in severely affected neighborhoods are Latino. Black communities also face disproportionate debt, and racial disparities persist even after accounting for socioeconomic characteristics. Further, the study found that lower-income neighborhoods, residents with limited English proficiency and renters face unequal debt burdens.
Early on in the pandemic, Gov. Gavin Newsom suspended water and energy utility shut-offs, which has provided continued utility access for households in California. But accumulating debt has not been forgiven, and this crisis will need to be resolved once the suspension is lifted.
Researchers said they hope to guide policymakers and utility operators in formulating targeted debt-relief programs, and calls for financial support from COVID-19-related aid to ensure that vulnerable Angelenos will still have access to water and energy after the pandemic.
“We need an equitable relief plan,” González said. “These communities are already historically underserved areas and they’ve been left behind more broadly during the pandemic. These debts will be impossible for many families to repay.”
Transportation is the largest source of greenhouse gas emissions in California. In order to achieve the state’s goals of carbon neutrality by 2045 and avoid the worst impacts of climate change, decarbonizing this sector is essential. But such a transition is unlikely to occur rapidly without key policy intervention, according to a new study that included research from the UCLA Luskin Center for Innovation.
A team of transportation and policy experts from the University of California released a report April 21 to the California Environmental Protection Agency (CalEPA) outlining policy options to significantly reduce transportation-related fossil fuel demand and emissions. Those policy options, when combined, could lead to a zero-carbon transportation system by 2045, while also improving equity, health and the economy. A second study, led by UC Santa Barbara, identifying strategies to reduce in-state petroleum production in parallel with reductions in demand, was released simultaneously.
The state funded the two studies through the 2019 Budget Act. The studies are designed to identify paths to slash transportation-related fossil fuel demand and emissions while also managing a strategic, responsible decline in transportation-related fossil fuel supply.
Bringing about a zero-carbon transportation future will be challenging but not impossible, the report states. Doing so requires urgent actions and a long-term perspective. Importantly, a major upfront investment in clean transportation through incentives and new charging and hydrogen infrastructure will soon pay off in net economic savings to the California economy, with net savings in the next decade growing to tens of billions of dollars per year by 2045.
The report recommends flexible policy approaches that can be adjusted over time as technologies evolve and more knowledge is gained.
“This report is the first to comprehensively evaluate a path to a carbon neutral transportation system for California by 2045,” said Dan Sperling, director of the UC Davis Institute of Transportation Studies. “We find that such pathways are possible but will rely on extensive changes to existing policies as well as introduction of some new policies. The study also prioritizes equity, health and workforce impacts of the transition to zero-carbon transportation.”
Researchers from the UCLA Luskin Center for Innovation led the study’s workforce analysis. Achieving carbon neutrality in California’s transportation sector could create over 7.3 million job-years of employment over the next 25 years, according to the researchers. These jobs would result from “greening” many existing occupations and creating new occupations.
“This presents the state with a golden opportunity to create not only new, high-quality jobs, but also ensure that many existing industries and occupations transition to better practices,” said J.R. DeShazo, director of the Luskin Center for Innovation and professor of public policy.
KEY POLICY STRATEGIES
Zero emission vehicles: Many of the report’s policy options are centered on a rapid transition to zero-emission vehicles (ZEVs), which is expected to dramatically reduce greenhouse gas emissions and improve local air pollution as the state’s electric grid is also decarbonized.
Light-duty and heavy-duty vehicles are responsible for 70% and 20% of the state’s transportation emissions, respectively. The report suggests a combination of enhanced mandates, incentives, and public charging and hydrogen infrastructure investments to speed the adoption of ZEVs. For medium and heavy-duty vehicles, key policy priorities include increasing the availability of charging stations for long-haul freights, electricity pricing reform to make depot charging more affordable, and priority lanes and curb access for zero-emission trucks, among other possibilities.
Vehicle miles traveled: Even with widespread ZEV use, reducing overall vehicle miles traveled is necessary to reduce traffic congestion and emissions from vehicle manufacturing, and to enhance quality-of-life and land-use benefits related to traffic. The report suggests policies that encourage active, shared and micromobility transportation, telecommuting, and land-use changes that reduce people’s reliance on automobiles and enhance community connectivity.
Fuels: About 86% of transportation fuel is petroleum. Shifting toward low-carbon clean energy requires major investments in electricity and hydrogen. Low-carbon liquid fuels compatible with internal combustion engines will be needed to reduce emissions while the transition to ZEVs progresses, as well as in some specialized applications, like aviation. California can support the needed investments in clean fuels with mandated blending levels, new incentives and credits to stimulate investment in very low-carbon liquid fuels for aviation, shipping and legacy combustion engine vehicles.
Getting to zero: Some residual emissions remain in every scenario examined. The report states that at least 4 million to 5 million metric tons per year of negative emissions capacity (equal to 2.5% of current transportation emissions) is needed by 2045 to counteract those residual emissions. These could come from carbon capture and sequestration projects that pull carbon from the air to store it underground, as well as so-called sequestration by natural or working lands.
BENEFITS
In addition to direct economic benefits beginning around 2030, the transportation decarbonization policies could also lead to health, equity and environmental justice, and workforce and labor benefits.
Health: Transportation is a major cause of local air pollution and contributes to climate change. Particulate matter harms lungs and hearts, while nitrogen oxide compounds contribute to ozone pollution and other health impacts. The report found that cleaner heavy-duty vehicles would significantly reduce pollution in many of the state’s most vulnerable communities. The health benefits of reducing local pollution will grow with the deployment of clean transportation technologies and could translate to more than $25 billion in savings in 2045.
Equity and environmental justice: Transportation in California carries a legacy of inequity and damage to disadvantaged communities. These communities often lack quality public transportation or viable transportation choices. Highways have been built with little consideration for displacement, and many communities of color have been divided by freeways, perpetuating historic segregation policies like redlining. The report identifies options that prioritize equity in transportation investments and policies.
For example:
Continue to support electric vehicle incentives targeted to lower-income buyers and underserved communities, including used vehicles.
Prioritize deploying electric heavy-duty vehicles in disadvantaged communities and magnet facilities such as commercial warehouses in those communities.
Support transit and zero-emission services and charging stations in disadvantaged communities. This can help reduce vehicle miles traveled and increase accessibility while avoiding displacement.
Avoid siting non-renewable fuel production facilities in disadvantaged communities, engage communities disproportionately affected by transportation sector emissions in decision-making concerning the siting of new infrastructure and investments associated with achieving carbon neutrality, and continue to carefully monitor and control local pollutants.
“We must confront the legacy of the lack of public and private investment where Black, indigenous and people of color live and work,” said Bernadette Austin, acting director of the UC Davis Center for Regional Change. “This report identifies ways to strategically invest in sustainable infrastructure while intentionally avoiding disruptive and damaging infrastructure in our most vulnerable and disadvantaged communities.”
Workforce: The transition to a carbon-neutral transportation system will disrupt jobs in some sectors while creating new jobs in others, like clean vehicle manufacturing and electric and hydrogen fueling infrastructure. The report suggests that California prioritize the needs of impacted workers. In addition, wherever ZEV-related industry expansion creates quality jobs, state policy should focus on creating broadly accessible career pathways.
Economy: The transition to ZEVs is expected to generate savings for consumers and the economy well before 2045. Within the next decade, the cost of owning and operating ZEVs is projected to drop below that of a conventional gasoline or diesel vehicle. That is because battery, fuel cell and hydrogen costs will continue to decline; electricity costs will be much less than petroleum fuel costs; and maintenance costs of ZEVs will be less. These savings can be invested elsewhere by households and businesses.
For further information about this report, contact Samuel Chiu or Kat Kerlin at UC Davis.
A group of UCLA engineers has become the first university team to win the grand prize in the NRG COSIA Carbon XPRIZE global competition. By mitigating the carbon footprint of concrete, the team’s invention could eventually be a major step in the global battle against climate change.
The UCLA CarbonBuilt team, led by Gaurav Sant, a professor of civil and environmental engineering at the UCLA Samueli School of Engineering, won $7.5 million in the competition’s track for technologies related to coal-fired power generation.
The winning technology is a first-of-its-kind, eco-friendly approach for taking carbon dioxide emissions directly from power plants and other industrial facilities — emissions that would otherwise go into the atmosphere — and infusing them into a new type of concrete invented by the team. As it hardens and gains strength, the specially formulated concrete permanently absorbs and traps the greenhouse gas.
Through extensive research at UCLA and testing at the Integrated Test Center, a facility outside of Gillette, Wyoming, the researchers demonstrated that their process reduced the carbon footprint of concrete by more than 50% while producing concrete that was just as strong and durable as the traditional material.
Each CarbonBuilt concrete block stores about three-quarters of a pound of carbon dioxide — a significant amount considering an estimated 1 trillion concrete blocks will be produced annually by the year 2027.
Sant joined the UCLA faculty in 2010. He and a group of staff scientists, postdoctoral scholars and doctoral students began the research that led to the award in 2014. A team from the UCLA Luskin Center for Innovation, led by Director JR DeShazo, supported the venture with public policy and economic guidance.
“Congratulations to the UCLA team and especially Gaurav for this significant achievement,” DeShazo said.
Gaurav Sant, a professor of civil and environmental engineering who leads the UCLA team, holds samples of the concrete produced using the eco-friendly technology.
Sant directs the UCLA Institute for Carbon Management and also holds a faculty appointment in the UCLA Engineering materials science and engineering department.
“As a third-generation civil engineer, I have been fascinated with the role that construction has played in solving societal challenges,” he said. “To have spent the past decade developing a solution to mitigate the carbon footprint of concrete with a phenomenal team, and to have won the NRG COSIA Carbon XPRIZE doing something I’m passionate about, is an ultimate dream come true.”
Sponsored by NRG Energy and Canada’s Oil Sands Innovation Alliance, the $20 million NRG COSIA Carbon XPRIZE competition was launched in September 2015 to find ways to beneficially use carbon dioxide emissions. The nonprofit XPRIZE Foundation challenged a global community of problem-solvers to develop technologies for turning carbon dioxide from coal and natural gas power plant emissions into valuable products. A Canadian team called CarbonCure won the competition’s other track, for natural gas-based power generation.
UCLA’s entry was one of 47 submissions from 38 teams in seven countries. CarbonBuilt, formerly known as CO2Concrete, was named one of the 10 finalists in October 2017.
Sant said the original inspiration for the winning technology came from an unlikely source: seashells.
“Seashells are made of calcium carbonate, which is nature’s original cementation agent,” he said. “We were really motivated by the idea of how seashells were held together. And that’s how we really set about to turn carbon dioxide into concrete.”
Challenged by experts in academia and industry who said it couldn’t be done, Sant and his team spent the next seven years on a mission to prove them wrong.
First, the UCLA researchers developed a new formula for cement, which is the binding agent in concrete. They used hydrated lime, or portlandite, which can absorb carbon dioxide quickly, to replace traditional calcium silicate cement, known as ordinary portland cement. Then, the team created a method in which carbon dioxide taken directly from flue gas is quickly absorbed by portlandite as the concrete hardens.
In addition to absorbing carbon dioxide into the concrete, CarbonBuilt’s Reversa process reduces the amount of ordinary portland cement needed to produce concrete by between 60% and 90%. The process also occurs at ordinary temperatures and pressures. As a result, CarbonBuilt concrete has a much smaller carbon footprint than conventional concrete. That could go a long way toward reducing the world’s greenhouse gas output, since the production of traditional cement used in concrete is the cause of nearly 9% of the world’s carbon dioxide emissions.
Another compelling advantage of the new technology is that it is cost-effective. Unlike other carbon-mitigation technologies that require an expensive setup to capture the carbon dioxide emissions or purify them, the CarbonBuilt process allows for carbon dioxide in power and industrial plants’ flue gas to be utilized directly and converted at its source without those extra steps.
“It’s a transformative, eureka moment for UCLA and for science and engineering,” said Jayathi Murthy, the Ronald and Valerie Sugar Dean of UCLA Engineering. “Through sheer tenacity and determination, Gaurav and his team were able to turn a research project into an innovative technology that can solve a real societal problem and drive positive change in the world.”
To advance to the finals, the UCLA researchers demonstrated that their technology could consume 135 kilograms (about 297 pounds) of carbon dioxide in 24 hours. In 2017, the team had to meet certain technical requirements, subject to verification by an independent firm. Those results were then evaluated by a panel of expert judges from academia and industry who assessed the amount of carbon dioxide that was converted into CarbonBuilt concrete, as well as the engineering, environmental and economic value of the construction material.
Originally scheduled for February 2020, the competition’s final round was postponed due to the COVID-19 pandemic. In June 2020, the UCLA team deployed to the Integrated Test Center to demonstrate its system on an industrial scale. The demonstration ran for four months and produced nearly 150 metric tons (more than 330,000 pounds) of CarbonBuilt concrete blocks. Some of the concrete blocks were donated to the Eastern Shoshone tribe for housing projects on the Wind River Reservation in Fort Washakie, Wyoming.
The funds from the NRG COSIA Carbon XPRIZE award will support innovative carbon-mitigation research and technology development at UCLA Engineering. CarbonBuilt, which is a private company founded by Sant, has secured rights related to the project’s patent portfolio owned by UCLA to commercialize the technology.
Prior to winning the grand prize, the team has raised $10 million toward the development of the CarbonBuilt technology. In addition to a $500,000 award from the XPRIZE Foundation in 2018 for reaching the finals, Sant secured a $1.8 million grant in 2019 from the Department of Energy. (Additional testing to complete the DOE grant recently concluded at the National Carbon Capture Center in Wilsonville, Alabama.) And the Anthony and Jeanne Pritzker Family Foundation contributed $1.5 million in 2017.
Many UCLA faculty members have contributed to the team’s success, including Center for Innovation Director DeShazo, a professor of public policy and of civil and environmental engineering; Dante Simonetti, an assistant professor of chemical and biomolecular engineering; Laurent Pilon, professor of mechanical and aerospace engineering and of bioengineering; Richard Kaner, a distinguished professor of chemistry and biochemistry and of materials science and engineering; and Mathieu Bauchy, an associate professor of civil and environmental engineering.
Additional team members include current and former UCLA Engineering project scientists Dale Prentice, Gabriel Falzone, Iman Mehdipour and Bu Wang; Hyukmin Kweon, a former UCLA postdoctoral scholar; Zhenhua Wei, a former doctoral student in civil and environmental engineering; Camly Tran, executive director of the Institute for Carbon Management; and seasoned industry advisers including Edward Muller, Stephen Raab and CarbonBuilt CEO Rahul Shendure.
Residents of Los Angeles County have been deeply affected by the COVID-19 crisis, with significant numbers citing the pandemic’s adverse impact on their finances, health and children’s education, according to UCLA’s sixth annual Quality of Life Index.
“A year ago we speculated about how resilient our region would be in the year to follow,” said Zev Yaroslavsky, director of the Los Angeles Initiative at the UCLA Luskin School of Public Affairs, who oversees the index. “We now know that Los Angeles County has demonstrated robust resilience, but a significant toll has been exacted on our residents by the tumultuous events. Many of our residents — especially younger ones — are anxious, angry and steadily losing hope about their future in Los Angeles.”
This year’s Quality of Life Index, or QLI, was based on interviews with 1,434 county residents over a 20-day period beginning on March 3, just as vaccinations were beginning to fuel optimism about a possible return to more normal life. Last year’s survey, conducted in the earliest stages of the pandemic, found high levels of anxiety about the possible impacts of COVID-19. Twelve months later, respondents said many of those fears had come to pass:
More than half of those surveyed (54%) reported that they or a close family member or friend had tested positive for the coronavirus.
Forty percent said their income went down because of the pandemic, with 22% saying it dropped “a lot” and 18% reporting “some” decline. Roughly 1 in 5 (18%) said they had lost their job at some point during the COVID-19 crisis.
Three-quarters of parents (76%) with school-age children felt their kids had been “substantially hurt, either academically or socially,” by pandemic-related distance learning and quarantine experiences.
In addition, nearly a fifth (17%) of all respondents reported that their income declined “a lot” in the past year and that they also suffered at least two specific negative impacts, such as a job loss, a wage or salary reduction, a decline in work hours or difficulty paying their rent or mortgage. This group was disproportionately composed of women under age 50, single people, renters, those without college degrees and those with household incomes of less than $60,000.
“These are among the most vulnerable individuals living in our county,” Yaroslavsky said.
The QLI, a joint project of the UCLA Luskin Los Angeles Initiative and The California Endowment with major funding provided by Meyer and Renee Luskin, asks a cross-section of Los Angeles County residents each year to rate their quality of life in nine categories and 40 subcategories. Full results of this year’s survey were made available April 19 as part of UCLA’s Luskin Summit, which is taking place virtually.
Mirroring last year’s result, this year’s overall quality-of-life rating held steady at 58 (on a scale of 10 to 100), which is slightly more positive than negative. But researchers noted that marked changes emerged among specific racial and ethnic groups, especially with younger residents.
Younger Angelenos: Sinking optimism, tempered by race
Reflecting a trend seen in recent QLI surveys, the county’s younger population — those between the ages of 18 and 49 — rated their quality of life lower than older residents, and the pandemic seems to have exacerbated that disparity.
“The varied manifestations of COVID-19,” Yaroslavsky said, “fell most heavily on the shoulders of younger county residents.”
In particular, researchers observed a growing belief by younger Angelenos that the cost of living in the region is threatening their ability to make ends meet, get ahead or gain some sort of financial security.Yet even among this demographic, the survey revealed a distinct divergence in views between Latinos and whites, the two largest racial/ethnic groups in the county. While they have faced demonstrably harder challenges in the region, Latino residents overall were more positive about their quality of life than whites — and this was particularly pronounced among younger residents.
“Repeatedly, younger Latinos are more positive about their own conditions and express greater approval and positivity toward the variety of public officials and governmental entities that affect their lives,” said Paul Maslin, a public opinion and polling expert with Fairbank, Maslin, Maullin, Metz & Associates (FM3 Research) who has overseen the QLI survey process since 2016. “Among younger white residents in Los Angeles County, a greater sense of frustration and even bitterness is apparent.”
The survey uncovered a number of noteworthy differences in these two groups’ views of the pandemic, public officials and the opportunities available in the region:
Younger white residents were evenly split over whether the handling of the pandemic had been fair or unfair to “people like them” (48% vs. 49%), whereas younger Latinos reported that it had been fair to them by a 2-to-1 margin (65% vs. 33%).
About two-thirds (68%) of younger whites believe the Los Angeles area is a place where the rich get richer and the average person can’t get ahead, compared with only 55% of younger Latinos.
Younger Latinos had more favorable views of Los Angeles Mayor Eric Garcetti (57%) and Gov. Gavin Newsom (53%) than younger whites, 57% of whom had unfavorable views of Garcetti and 62% unfavorable views of Newsom.
Younger white residents rated the response to the pandemic — across all levels of government — much more harshly than younger Latinos. Only about a third of whites approved of the response of federal, state and county governments and local school districts. Latinos’ ratings of approval were at least 20 points higher for every level of government and for local school districts.
However, in terms of paying their rent, more younger Latinos (43%) reported falling behind than did young whites (31%).
The 2021 QLI: Resilience and change
While this year’s quality-of-life rating remained at 58 overall, reflecting a remarkable resilience among county residents, several significant shifts within the nine major categories that make up the survey tell a different story.
This was most noticeable in the education category, where the satisfaction rating of respondents with children in public schools dropped from 58 last year to 52 this year, one of the most dramatic one-year declines in any category in the QLI’s history.
Satisfaction ratings for public safety also fell over the past year, from 64 to 60, influenced significantly by a growing concern over violent crime. And respondents’ rating of the quality of their neighborhoods dropped from 71 to 68.
On the other hand, satisfaction with transportation and traffic rose from 53 to 56, which researchers attribute to a significant reduction in commuter traffic caused by pandemic-related workplace shutdowns.
With regard to the workplace, 57% of employed respondents said they currently work from home or split time between home and their place of work. As to the future, 77% said they would prefer a mix of working from home and their workplace when the pandemic ends, with just 16% wanting to “almost always work at home.”
The 2021 UCLA Luskin Quality of Life Index is based on interviews with a random sample of residents conducted in both English and Spanish, with a margin of error of plus or minus 2.6%. The QLI was prepared in partnership with the public opinion research firm Fairbank, Maslin, Maullin, Metz & Associates (FM3 Research). The full reports for 2021 and previous years are posted online by the UCLA Lewis Center for Regional Policy Studies.
California was the first U.S. state to legally recognize access to safe, clean and affordable water as a human right. But substantial parts of the state lack access to drinking water that meets those criteria.
A new study (PDF) published by the California State Water Board and supported by UCLA research identifies a risk for failure among a significant portion of the state’s small and medium-sized public water systems. The report is the first comprehensive analysis of how clean water is provided in California, and it estimates how much it would actually cost to deliver safe water to every resident.
The research was a collaboration between the UCLA Luskin Center for Innovation, the water board’s Needs Analysis Unit, Corona Environmental Consulting, Sacramento State University’s Office of Water Programs, the Pacific Institute and the University of North Carolina’s Environmental Finance Center.
Of the 2,779 public water systems evaluated in the study, nearly half are at some risk of failing to provide an adequate supply of safe drinking water. To measure the health of water systems, the researchers assessed each water system using 19 indicators for water quality, accessibility, affordability and operational capacity.
Based on those assessments, each system received an overall rating indicating how likely it would be to fail — from “not at risk” at the top end of the scale, to “potentially at risk” and “at risk” for the systems with the lowest scores. The researchers found 25% of water systems to be “at risk,” while an additional 23% are “potentially at risk.”
The study also identified locations where groundwater quality is out of compliance with the state’s safe water drinking standards. About one-third of domestic wells and one-half of state small water systems were found to be at a high risk for containing contaminants like nitrate and arsenic.
“Illuminating the extent of at-risk water systems is an important step,” said Gregory Pierce, the study’s principal investigator and an associate director at the Luskin Center for Innovation. “By more fully understanding the issues, we can move to more resilient and accessible water sources.”
The study noted that water quality and infrastructure issues vary substantially across the state. For instance, Kings County, in central California, has the highest proportion of at-risk public water systems (75%), while San Francisco County and Modoc County in the northern part of the state have zero at-risk systems.
The research incorporated a comprehensive evaluation of thousands of water systems and hundreds of thousands of wells, as well as input from water managers, environmental nonprofits and advocacy groups.
Among the other findings:
Holistic solutions can help.
In the short term, bottled water and home filtration systems can be used to help communities that need clean drinking water immediately. The researchers estimate that those short-term interventions would cost between $500 million and $1.6 billion over the next five to nine years.
Long-term solutions include enhancing water treatment; consolidating small, underperforming water systems; and providing experts to advise communities on how to improve those systems. The study estimates a wide range of total costs for those solutions, depending on which actions local systems adopt, but the midpoint estimate is about $5.7 billion.
More funding will be needed.
The Safe and Affordable Drinking Water Fund, which was established in 2019 to help bring adequate drinking water to disadvantaged communities, already provides critical financial support. But for all California communities to have reliably safe drinking water, more financial resources are likely needed.
Additional funding could come from a variety of sources, including the state legislature, the governor’s office and federal agencies.
The analysis suggests prioritizing funding for water systems that are currently most at risk and that are located in underserved communities. It also sets the stage for a deeper investigation of how the state can ensure safe, clean and affordable water for all — an especially salient issue as Congress is considering a federal infrastructure bill that would, in part, address the systems that deliver drinking water throughout the U.S.
“I’m optimistic that as a nation, we’re talking about upgrading our pipes and cleaning up our contaminated drinking water,” said Peter Roquemore, a co-author of the study and a researcher at the Luskin Center for Innovation. “Infrastructure might not always be glamorous, but the impacts of fixing our water systems would be huge.”
For many Los Angeles residents, the daily commute is frustrating. A project by three UCLA faculty members aims to change that — especially for those who ride to work on two wheels — by creating bicycle “flows” that produce real-time digital art exhibitions throughout the city.
One of the project’s goals is to make cycling to work feel as accessible and safe as other modes of travel, so the professors envision groups, or flows, of cyclists that would be organized by a smartphone app. The app would encourage reluctant or inexperienced cyclists to participate by pointing them toward those flows, suggest routes that are optimized for enjoyability and safety over efficiency or speed, and enable participants to share their experiences.
Those experiences, in the form of text, photos, videos and other creative submissions, would feed directly into digital murals throughout Los Angeles. The murals would be located in community spaces and transportation hubs around the city — including, for example, a large interactive display at the Los Angeles State Historic Park, adjacent to Chinatown — elevating biking to work to a collective creative experience.
“We envision the cooperative bike flows as a type of performative media artwork that is shared live with all of Los Angeles in public spaces and on the internet,” said Fabian Wagmister, the project’s principal investigator and the founding director of the UCLA Center for Research in Engineering, Media and Performance, known as UCLA REMAP.
“By inviting communities to think about bicycle riding as a way to express themselves in the urban landscape, we can strengthen commuters’ ownership of the system and offer a deeper level of engagement in the future of the city.”
The project, called Civic Bicycle Commuting, or CiBiC, is co-led by Anastasia Loukaitou-Sideris, distinguished professor of urban planning at UCLA Luskin, and Jeff Burke, co-director of REMAP and a UCLA professor in-residence of theater.
The project already is gaining some traction: In February, the initiative received $50,000 in funding from the Civic Innovation Challenge, which is funded by the National Science Foundation in partnership with the U.S. Department of Energy and the U.S. Department of Homeland Security. CiBiC is now in contention for an additional grant of up to $1 million, which the researchers would use to create a prototype of the project.
CiBiC’s art-led approach makes it somewhat of an anomaly among most of the competitors in its category, “communities and mobility.” Most of the other proposals have origins in the STEM fields and social sciences.
To ensure the project incorporates the diverse experiences and needs of Los Angeles commuters, the researchers are soliciting input from Los Angeles neighborhood groups. Loukaitou-Sideris said the team will especially seek participation from low-income residents of Chinatown, Solano Canyon, Dogtown and Lincoln Heights.
“We want to hear from community groups and residents and understand how we can create something that is tailored to their needs,” she said.
The researchers also are collaborating with Eli Akira Kaufman, executive director of the Los Angeles County Bicycle Coalition, who said the project could demonstrate how transformative bicycle culture could be in Los Angeles if bicyclists could help create infrastructure that reflected their needs.
“Instead of allowing the built environment to dictate the culture of bicycling in Los Angeles, we need to uplift the culture of bicycling to make sure the built environment is defined by the social infrastructure and the people who use it,” he said.
Aggregated data from the app could also eventually be used to influence Los Angeles’ long-term infrastructure planning.
And Wagmister said the project stands to both reflect and amplify the city’s creative spirit: “We want to create an alternative transportation system in Los Angeles, one that values our collective creative capacity to transform the city for all.”
New research by the UCLA Luskin Center for Innovation has identified how effective certain incentives can be in motivating people to use less energy in their homes.
Electricity providers often need to encourage customers to reduce consumption in order to prevent blackouts or to avoid having to activate additional power plants — often natural gas-powered plants that pollute the environment.
The researchers found that promotional messages about how customers could save money on their electricity bills or earn other financial rewards were effective at motivating them to use less energy.
For the study (PDF), which was funded by a grant from the California Energy Commission, the UCLA researchers assessed data from energy bills for more than 20,000 California households in territories served by Pacific Gas and Electric, Southern California Edison and San Diego Gas & Electric.
The customers all participate in “demand response programs,” which encourage users to save energy at times of high stress on the electrical grid, like during heat waves; they all also used one of two smartphone apps — Chai Energy or OhmConnect — that help users manage their home energy consumption. Often, the apps offered cash incentives to participants for adjusting their thermostats during times when demand for energy was highest.
The study revealed that offering participants financial rewards, on top of the amount of money they’d save simply for using less energy, had a measurable effect on reducing their energy use — although the amount of the financial incentive made relatively little difference. Collectively, the 20,000 households in the study had received over $1 million in rewards over the previous two years through those incentive programs, in addition to the savings on their electricity bills from using the apps.
Encouraging flexibility in our energy system is especially important as the nation’s infrastructure continues to shift to clean energy. For instance, weather can be unpredictable and impact the amount of electricity generated by solar panels or wind turbines. Demand response programs can be effective at reducing energy use during these times to avoid blackouts.
“In more good news for the environment, our study found that demand response programs result in overall reduction in energy use — not merely a shift of consumption to other hours or days,” said JR DeShazo, the study’s principal investigator and the director of the Luskin Center for Innovation.
That finding is particularly significant because some observers had suspected that demand response programs merely encouraged energy customers to shift their electricity use to other times of day — for example, by waiting to run their dishwashers or clothes dryers during overnight hours, when overall energy demand was lower — but without actually reducing the amount of energy they consumed. But the UCLA report concluded that customers’ energy consumption did not increase in the hours or days surrounding a demand response event, suggesting that the approach resulted in actual reductions in consumption.
The households with the greatest reduction in consumption during demand response events were those with solar panels, plug-in electric vehicles and automation devices — gadgets like smart thermostats that can automatically alter energy usage but can be overridden by the owner. For example, automation devices can delay charging an electric vehicle or turn down an air conditioner until an off-peak time.
“Automation devices make participating in demand response programs effortless, and ultimately rewarding,” said Kelly Trumbull, a co-author of the study and a Luskin Center for Innovation researcher. “They also help secure predictable and reliable energy savings.”
Demand response providers typically reward users based on their energy conservation relative to an energy consumption goal assigned by the utility. Researchers found that households reduce their energy use more when that consumption goal is more ambitious, assuming all other factors are constant.
“This finding underscores the importance of setting baselines and communicating them to customers,” DeShazo said. “If we are asked to do more, we often will.”
The study recommends actions utilities and third-party demand response providers — like the ones that market the energy management apps — can take to maximize both the environmental and economic benefits of residential demand response programs, including:
Offering financial incentives and emphasizing the economic benefits to participants.
Supporting the adoption of automation devices like smart thermostats.
Inducing greater energy savings by setting ambitious conservation targets for customers.
Most Californians, depending on their electricity providers, are eligible to participate in existing demand response services.
