D.Env. in Environmental Science and Engineering

alumni spotlight

Chris Hsu, D.Env. 2012 Technical Manager, Michael Baker International

Chris Hsu is a civil and environmental engineer committed to advancing sustainable water management and green infrastructure. His work focuses on stormwater engineering, water quality treatment and the transport of emerging contaminants. He specializes in permitting under the National Pollutant Discharge Elimination System and compliance with the Clean Water Act, supporting transportation systems, commercial and industrial facilities — as well as municipal programs in reducing pollution and protecting watersheds.

Hsu has contributed to statewide and regional Best Management Practice (BMP) strategies, advanced treatment systems and rainwater harvesting projects — promoting water reuse and climate resilience. He is a licensed Professional Civil Engineer in California and holds certifications from the State and Regional Water Quality Control Boards.

"The UCLA Environmental Science and Engineering program gave me a systems-based perspective on water resources and sustainability," says Hsu. "It strengthened my ability to integrate science, engineering and policy to design solutions that protect water quality and support climate-resilient communities."

alumni spotlight

Cris B. Liban, D.Env. 2003 Chief Sustainability Officer for the Los Angeles County Metropolitan Transportation Authority

Cris B. Liban is dedicated to the sustainability of the county's environment, economy, people, and beyond. He oversees Los Angeles Metro’s internationally recognized environmental, sustainability and energy initiatives and since 2005 has led the first and most comprehensive sustainability and resiliency program in the transit industry. As L.A. Metro’s executive for environmental compliance and sustainability, he developed the agency's first Power Purchase Agreement and has run the first EV charger system owned by a transit agency. His commitment has improved the environmental quality of the agency’s infrastructure and service while delivering projects that are equitable, diverse, inclusive, resilient and sustainable without driving up costs. 

alumni spotlight

Elissa Foster, D.Env. 2016 Senior Manager of Product Responsibility for Patagonia

The comprehensive education and experience Elissa Foster received in the Environmental Science and Engineering doctoral program made her an expert in environmental sustainability. Her dissertation on product life cycle assessment and usage in the apparel industry gave her skills to evaluate environmental effects of textile and apparel industries, including raw material extraction, knitting and weaving, dyeing, manufacturing, distribution, usage, disposal and recycling. Now, as a senior manager of product responsibility for Patagonia, Foster is responsible for developing sustainable strategies at the apparel company. Her challenge is to consider how the company can continue to make great products — apparel, equipment, and accessories ­— to satisfy high demand while reducing environmental impact. 

alumni spotlight

Shelley Luce, D.Env. 2003 President & Chief Executive Officer of Heal the Bay

Shelley is responsible for determining Heal the Bay’s policy priorities, forming smart strategic alliances, and growing public participation across greater Los Angeles. Shelley, who holds a Doctorate of Environmental Science and Engineering from UCLA and a B.S. in Biology from McGill University, began her advocacy career at Heal the Bay, serving as a staff scientist from 2001-2005. She went on to hold executive director positions at the Santa Monica Bay Restoration Commission, the Bay Foundation, and the Environment Now Foundation before rejoining Heal the Bay as President and Chief Executive Officer in 2017.

alumni spotlight

Ben Schwegler, D.Env. 1999 Chief Scientist for Disney Imagineering

Walt Disney theme parks can not only claim to be the “happiest places on earth,” they’re also now the most energy-efficient theme parks and resorts. As chief scientist for Imagineering Research and Development, Schwegler spearheaded the use of 3D and 4D simulation to ensure that sustainable design and engineering are utilized in all of Disney’s built environments. This resulted in water treatment technologies that enabled the first closed-loop control of wastewater treatment plants. The challenge at a place like Disney is incorporating a broad cross-section of professional visions and input. “In our world we deal with artists, so we need to make engineering decisions that allow everyone else’s creativity and good ideas to flourish,” says Schwegler.

alumni spotlight

Chad Nelsen, D.Env. 2012 CEO Surfrider Foundation

Nelsen is the man behind surfonomics—the scientific breakdown of surfing’s economic importance. The son of a marine science teacher, Nelsen remembers performing seawater buoyancy and salinity tests in his father’s lab. In grad school, Nelson realized he could combine his passion for the ocean and science with his recreational pastime—surfing—in his doctoral thesis. He had a hunch the monetary value of healthy coastal ecosystems and surf breaks was an under-utilized tool in coastal conservation. “One of my proudest accomplishments is that surfonomics is now being applied to coastal preservation efforts around the world,” says Nelsen. He’s now CEO of Surfrider Foundation, the largest U.S non-profit dedicated to marine conservation.

alumni spotlight

Keith Kawaoka, D.Env. 1980 Deputy Director of Environmental Health, Hawaii

From chemical weapons disposal to the Zika virus, Kawaoka has taken on massive environmental issues. He’s also had a wildly diverse career. “I managed to work in environmental science all my career—except for the few times I was a rocket scientist.” Kawaoka isn’t joking. His ESE internship was with Aerospace Corporation—a military projects research center. In the 1970s, Kawaoka worked on renewable energy technologies. Then in the 1980s, he learned rocket science for the Strategic Defense Initiative, or “Star Wars.” Now in Hawaii, he’s deputy director of environmental health, working on legislation, dealing with new challenges, such as interacting with media. “A lot of times you get a few minutes or seconds before the camera starts whirling,” he says. “There’s never a dull moment.”

alumni spotlight

Nicholas Nairn-Birch, LiS 2009, D.Env. 2012 Air Resources Manager at California Air Resources Board

Nairn-Birch heads California’s effort to get low-income residents out of older, high-polluting, gas-guzzling cars and into clean-air vehicles. Working for the Air Resources Board, he designs programs to modernize the state’s car fleet and meet ambitious greenhouse gas reduction goals. In LiS, Nairn-Birch quickly learned that environmental problems have to be addressed in their broader context—most environmental solutions require input from a variety of experts. Being able to speak to and facilitate dialogue with chemists, engineers, toxicologists, economists, business people and trade associations is key to sustainability leadership, he says. It’s a skill that was also instrumental in his earlier work on pollution prevention and chemical safety at the EPA.