See our positions on ballot measures and help with voter turnout and election protection – SanDiego350/vote

 

Staff & Board
Carlos (2)

Carlos L.

OCEANSIDE INTERN

Elizabeth headshot

Elizabeth Thanh Tam Nguyen

YOUTH COORDINATOR

Headshot of Emma Rodriguez

Emma Rodriguez

VOLUNTEER COORDINATOR

jaidacyn 2025

Jaidacyn Madrigal

MARKETING AND FUNDRAISING MANAGER

Screenshot 2026-09-01 111310

Karla Y. B.

SOUTH BAY INTERN

kyla2

Kyla Guerrero

FINANCE & OPERATIONS MANAGER

Screenshot 2026-08-17 115738

Maria E.

YOUTH v. OIL INTERN

MD2-2015-3-300x200

Masada Disenhouse

EXECUTIVE DIRECTOR

Staff photos (1)

McGarrah Wilson

YOUTH PROGRAM MANAGER

Melissa web 2

Melissa Reyes

COMMUNITY OUTREACH PROGRAM ASSISTANT

Simren web

Simren Kaur Corral

DEVELOPMENT MANAGER

Photo on 5-17-25 at 5.45 PM #3

Taarika S.

YOUTH4CLIMATE INTERN

Carlos (2)

Pronouns: He/Him
Hometown: Oceanside

Carlos L.

Oceanside Intern

Pronouns: He/Him
Hometown: Oceanside

Carlos is a senior at El Camino High School. Born and raised in Oceanside, a coastal city home to many underprivileged and historically marginalized communities, he understands firsthand how environmental and social inequities intersect. He is passionate about amplifying the voices of minority and low-income youth who are too often excluded from conversations about climate justice. Previously, Carlos was a Student Representative on his School Site Council, a Class Vice President, and an intern with Save Oceanside Sand.

Elizabeth headshot

Pronouns: She/Her
Hometown: San Diego

Elizabeth Thanh Tam Nguyen

Youth Coordinator

Pronouns: She/Her
Hometown: San Diego

Elizabeth is passionate about environmental and marine conservation as well as empowering the youth to take action and become leaders in their communities. She graduated with a degree in Marine Biology from UC San Diego and worked at multiple non-profit organizations as an environmental educator and youth mentor. As Youth Coordinator, she is excited to uplift the voices of youth leaders in Oceanside and Southeast San Diego and support them in their climate action projects.

Headshot of Emma Rodriguez

Pronouns: She/Her
Hometown: San Diego

Emma Rodriguez

Volunteer Coordinator

Pronouns: She/Her
Hometown: San Diego

Emma is fascinated by policy at the intersection of environment and poverty. After serving as a volunteer for SanDiego350’s Let’s Go! San Diego efforts, she came onboard as a Campaign Coordinator to manage SanDiego350’s campaign efforts. More recently she was hired to be SD350’s full time Volunteer Coordinator. She continues to volunteer with SanDiego350 as a member of its transportation team. Emma is a proud user of public transportation and enjoys KPOP and jigsaw puzzles. 

jaidacyn 2025

Pronouns: She/Her
Hometown: Everett, WA

Jaidacyn Madrigal

Marketing and Fundraising Manager

Email Jaidacyn

Pronouns: She/Her
Hometown: Everett, WA

Jaidacyn is passionate about building community and engaging supporters. She graduated from Sacramento State University with a degree in Hospitality & Tourism Management, and a minor in Environmental Studies. At SanDiego350, Jaidacyn organizes fundraising campaigns, plans events, and develops engaging marketing content. She cares deeply about environmental education – she even puts on a haunted maze every year to educate people about “real life terrors” like climate change through an event called Fright for Future. 

Screenshot 2026-09-01 111310

Pronouns: She/Her
Hometown: Los Angeles & National City

Karla Y. B.

South Bay Intern

Pronouns: She/Her
Hometown: Los Angeles & National City

Karla is a senior at Sweetwater High School. Born in Tijuana, Mexico; she has lived all over Southern California, primarily in Los Angeles and San Diego. Growing up in these places engrained a deep understanding of how important having access to green spaces and the diverse natural environment is; especially surrounded by a criss-cross of highways in both Los Angeles and National City.  Deeply passionate about environmental, social, and justice issues; she hopes to use her role to work with her community to allow those who in the past haven’t been given the chance to have a voice to have one, and to create collective change in their very own communities through their unique perspectives and input.

Pronouns: She/Her
Hometown: Chula Vista

Kyla Guerrero

Finance & Operations Manager

Email Kyla 

Pronouns: She/Her
Hometown: Chula Vista

Kyla is a recent USD graduate, earning her masters in nonprofit leadership. Kyla’s recent travel experience in Southeast Asia studying social-impact enterprises and NGOs fueled her passion for sustainable environmental change as a collective responsibility. As the Finance & Operations Manager, Kyla aspires to create systems and processes that support the important work SD350 does in climate justice advocacy with a commitment to equity-driven ethics, data-driven insight to enhance organizational efficacy, and amplifying community voices. 

Pronouns: She/Her
Hometown: Mexico City

Maria E.

Youth v. Oil Intern

Pronouns: She/Her
Hometown: Chula Vista

Maria is a senior at Hilltop High School passionate about social, environmental, and gender justice. She works to empower youth in her underserved community to engage in advocacy and civic engagement, with the goal of educating her community that they CAN make a difference and DO have a voice in decision-making. Growing up in Mexico City and following her immigration, Maria has worked to represent those most marginalized in decision-making by talking to representatives about important climate legislation that affects some more than others, leading walkouts, and leading speaking and workshop events through Youth4Climate and Youth v. Oil. Maria is excited to start a new chapter as the Youth v. Oil Intern and is eager to collaborate and work with more communities throughout the county.

Pronouns: She/Her
Hometown: New York City

Masada Disenhouse

Executive Director

Email Masada | 619-277-4594

Pronouns: She/Her
Hometown: New York City

Masada co-founded SanDiego350 in 2011 and serves as Executive Director, responsible for staffing, program development and general oversight of the organization. Masada is passionate about empowering people to organize, advocate, and build bold, intersectional grassroots campaigns and political power. Prior to SanDiego350, Masada worked for 350.org where she managed staff and programs to support the growth and development of over 150 local 350 affiliates in 350’s U.S. network.

Pronouns: She/Her
Hometown: Pittsburgh, PA

McGarrah Wilson

Youth Program Manager

Email McGarrah

Pronouns: She/Her
Hometown: Pittsburgh, PA

McGarrah became passionate about the environment from a young age when experiencing poor air quality, polluted waterways, and lead-contaminated drinking water growing up in Pittsburgh, PA. She graduated from the University of Pittsburgh with a degree in Environmental Studies and has worked with youth in a variety of fields from running a leadership training program to working in youth mental health. As the Youth Program Manager, McGarrah activates and empowers the next generation of climate leaders and believes youth should be listened to in decision making spaces since their futures will be most impacted.

Pronouns: She/Her
Hometown: Imperial Valley

Melissa Reyes

Community Outreach Program Assistant

Email Melissa

Pronouns: She/Her
Hometown: Imperial Valley

Melissa is passionate about environmental justice, equity and intersectionality; and has highlighted her passions throughout her nonprofit work across San Diego County. She graduated from Cal State San Marcos with a degree in Environmental Studies and has worked as an environmental educator since 2018. Growing up in an marginalized community herself, she believes that with the power of community, anything is possible. As a Community Outreach Program Assistant, she hopes to bring affordable and equitable resources to many homes in San Diego, while also building meaningful connections with diverse and resilient communities.

Pronouns: She / Her
Hometown: Sacramento

Simren Kaur Corral

Development Manager

Pronouns: She / Her
Hometown: Sacramento

Simren is a sustainability and development leader who is passionate about supporting grassroots organizations to make deep impacts in their communities. With deep roots in Sacramento, CA, she has witnessed for herself how climate change has impacted her home. She has a background in nonprofit development and has a Master of Science in Engineering, Sustainability, and Health. At SanDiego350, Simren seeks to build stronger relationships with donors and stakeholders while also spearheading fundraising campaigns to help strengthen the financial future of the organization. Simren is an avid reader and gardener who has both an ever-growing reading list and an expanding garden plan. 

Pronouns: She/Her
Hometown: Encinitas, CA

Taarika S.

Youth4Climate Intern

Pronouns: She/Her
Hometown: Encinitas, CA

Taarika is a junior at Canyon Crest Academy. With Youth4Climate, she has spoken at events, been the Youth Volunteer Outreach Coordinator, served as the Speaker Coordinator for two Summits, and has been a dedicated volunteer for a couple of years. Born and raised in San Diego, Taarika cannot imagine a world without the beautiful beaches rimming the coast, the lazy lagoons where wildlife thrives, the canyons hidden between nooks of the Earth, and the stunning environment that is at the heart of her home. Taarika hopes to help preserve the beauty of her community by empowering youth to take action and have their voice heard in this fight.

Anita

Anita Martinez

BOARD SECRETARY

Anne Sheridan 2025 for web

Anne Sheridan

BOARD MEMBER

Bill 450 x 300

Bill Wellhouse

BOARD TREASURER

Diego-Sandoval

Diego Sandoval

BOARD MEMBER

jimmiller2

Jim Miller

BOARD MEMBER

Kath 200x300

Kath Rogers

BOARD VICE PRESIDENT

Max 600 x 400

Max Lebovitz

BOARD MEMBER

Mika2

Mika Nagamine

BOARD MEMBER

Rebecca 600 x 400

Rebecca Rojas

BOARD MEMBER

Sofia-Carrasco

Sofia C.

BOARD MEMBER

steve gelb for web

Steve Gelb

BOARD PRESIDENT

Masada Disenhouse

EXECUTIVE DIRECTOR - EX OFFICIO BOARD MEMBER

Anita

Pronouns: She/Her
Hometown: San Diego

Anita Martinez

Board Secretary

Pronouns: She/Her
Hometown: San Diego

 Anita joined the Board in 2022 and became the Board Secretary in June 2023. She is a member of SD350’s JEDI team and she has helped create Climate Justice workshops. Her work with SD350 is driven by a passion for environmental justice and for taking necessary action to mitigate climate change now and for future generations. Environmental justice is at the heart of her work.  Anita retired from Grossmont College where she worked in the Career Technical Education & Workforce Development division. She was also co-chair of the Professional Development Committee. Anita also serves as VP of the American Federation of Teachers Retiree Chapter.

Anne Sheridan 2025 for web

Pronouns: any/all
Hometown:  Hull, MA

Anne Sheridan

Board Member

Pronouns: any/all
Hometown:  Hull, MA

Anne joined the Board in 2025 having first become a volunteer in 2018. As a volunteer, she co-lead and participated in a number of SanDiego350’s public policy teams. Anne is motivated by a vision of the world where everyone’s needs are met through the collaborative management of resources. She has a master’s degree in Ecology, Economics and Policy and focuses her work on cultivating practices for participatory decision-making. 

Bill 450 x 300

Pronouns: He/Him
Hometown:  

Bill Wellhouse

Board Treasurer

Pronouns: He/Him
Hometown: 

Bill joined the Board in 2019 after serving on SanDiego350’s Steering Committee and doing a lot of the work to keep the organization running smoothly, including budget, insurance, our policy manual, and supporting our teams. Before he retired, Bill directed two charter schools and gained a great deal of experience with non-profit issues.

Diego-Sandoval

Pronouns: He/Him
Hometown: San Ysidro

Diego Sandoval

Board Member

Pronouns: He/Him
Hometown: San Ysidro

 

Diego joined the board in 2026 after serving as the Media Team Lead for Youth v. Oil and volunteering since 2024. He is a graduate of Eastlake High School and is double majoring in Urban Studies & Planning and Public Policy at UCSD’s Revelle College. As a young person, Diego is especially concerned about sustainability: meeting our own needs today without hurting the ability of future generations to meet theirs.  In an era where over-consumption is the norm, Diego has made an oath to only buy clothes 2nd hand, while running a neighborhood composting site and teaching other youth how to do the same. Diego envisions a walkable San Diego, one where car-dependency isn’t the only option, and advocates for density and transit to see this vision through. He believes a better future begins with investing in youth today.

jimmiller2

Pronouns: He/Him
Hometown: San Diego

Jim Miller

Board Member

Pronouns: He/Him
Hometown: San Diego

 

Jim joined the Board in 2019. He is a native San Diegan and holds an MFA in fiction from SDSU and a Ph.D. in American Culture Studies from Bowling Green State University. Miller is the co-author of the local history Under the Perfect Sun: The San Diego Tourists Never See as well as the author of the novels Drift, Flash,  Last Days in Ocean Beach, the poetry collection Paradise and Other Lost Places and several other works.  He teaches at San Diego City College and is a Vice President of the American Federation of Teachers, Local 1931 and a founding member of the San Diego Imperial Counties Labor Council’s Environmental Caucus, part of the CFT’s Labor and Climate Education Committee, and a member the AFT National Climate Committee.  

Kath 200x300

Pronouns: She/Her
Hometown: Chicago

Kath Rogers

Board Vice President

Pronouns: She/Her
Hometown: Chicago

Kath joined the Board in 2025. She is an attorney with the ACLU of Southern California where she works to advance the rights of unhoused community members through litigation and policy advocacy. Prior to becoming a civil rights lawyer, Kath worked as an organizer for more than a decade on local and state campaigns to advance social justice, including climate justice.

Max 600 x 400

Pronouns: He/Him
Hometown: Los Angeles

Max Lebovitz

Board Member

Pronouns: He/Him
Hometown: Los Angeles

Max joined the board in 2021 after serving as the Monthly Meeting Coordinator since joining SanDiego350 in 2018. His focus is on helping bring awareness to important climate-related issues through education, outreach, and event organization. For his professional career, Max runs marketing for a local sports technology company.

Mika2

Pronouns: She/Her
Hometown: Tokyo, Japan

Mika Nagamine

Board Member

Pronouns: She/Her
Hometown: Tokyo, Japan

Mika joined the Board in 2026 as its newest member. Having grown up in Japan using public transportation in daily life, she developed a strong appreciation for effective transit systems and has been an active member of the SD 350 Transportation Team for several years, working to improve transportation in the San Diego region. A lifelong environmentalist, she is committed to protecting ecosystems and maintaining livable communities by addressing the impacts of climate change. She works professionally as a healthcare data analyst.

Rebecca 600 x 400

Pronouns: She/Her
Hometown: Los Angeles

Rebecca Rojas

Board Member

Pronouns: She/Her
Hometown: Los Angeles

Rebecca joined the Board in 2019. She started volunteering with SD350 in 2012 because she wanted to be part of building a social movement that would fight for climate justice. By day she works as an attorney advocating for the rights of seamen injured onboard vessels and victims who have been seriously injured in accidents.

Sofia-Carrasco

Pronouns: She/Her
Hometown: New York City

Sofia C.

Board Member

Pronouns: She/Her
Hometown: New York City

Sofia joined the Board in 2026. She is a senior at Canyon Crest Academy and previously served as the Youth v. Oil Intern, leading SanDiego350’s student-driven campaign against fossil fuels. She believes the environment is a central pillar for all human rights, and works to promote a sustainable future in communities, schools, health systems, and economic systems. As she continues to work with SanDiego350, she hopes to bring creativity and further her love for policy, law, and community service.  

steve gelb for web

Pronouns: He/Him
Hometown: Brooklyn, NY

Steve Gelb

Board President

Pronouns: He/Him
Hometown: Brooklyn, NY

Steve joined the Board in 2025. He is committed to promoting transportation modeshift from driving to walking, cycling, and transit, and by curbing highway expansion. He joined the SD350 Transportation team in 2020 and has represented District 7 on the City of San Diego Mobility Board since 2022. Steve wishes to reframe reliable, frequent transit as a civil rights issue since many citizens cannot drive because of disability, income, license suspension, and/or age, and their access to jobs, education, and medical care is thus severely compromised.

Pronouns: She/Her
Hometown: New York City

Masada Disenhouse

Executive Director – Ex Officio Board Member

Pronouns: She/Her
Hometown: New York City

Masada is a founding member of SanDiego350. She has organized San Diego’s largest climate mobilizations and is passionate about empowering people to organize, advocate, campaign and build grassroots political power together. Prior to SanDiego350, Masada worked for 350.org where she managed staff and programs to support the growth and development of the over 150 local 350 affiliates in 350’s U.S. network.

Daryn headshot

Daryn T.

YOUTH v. OIL LEGISLATIVE LEAD, DATACENTER CAMPAIGN LEAD

Maya headshot

Maya S.

YOUTH VOLUNTEER COORDINATOR

Miles headshot

Miles W.

YOUTH WEBSITE EDITOR

Xavier headshot

Xavier G.

YOUTH VOLUNTEER COORDINATOR

Daryn headshot

Pronouns: She/Her
Hometown: Sacramento

Daryn T.

Youth v. Oil Legislative Lead, Datacenter Campaign Lead

Pronouns: She/Her
Hometown: Sacramento, CA

Daryn is a junior at Canyon Crest Academy and leads Youth v. Oil’s Legislative Team. Since joining Youth v. Oil, she has been mobilizing youth around the county to make their voices heard in government. Along with other youth, Daryn has organized meetings with elected officials, created bill ideas, and gave presentations in multi-generational spaces. Daryn has a firm belief that inspiring the next generation’s wave of passionate activists will pave way for a better, greener future for all.

Maya headshot

Pronouns: She/Her
Hometown: Ocean Beach, CA

Maya S.

Youth Volunteer Coordinator

Pronouns: She/Her
Hometown: Ocean Beach, CA

Maya is a current junior at Point Loma High School. San Diego’s abundance of natural lands and parks has always been a part of her life, from beach days, swimming, to hiking and running trails, wherever and whenever. As an ongoing volunteer for cleanups on Sunset Cliffs, Ocean Beach, San Diego River, and the Famosa Slough, she has built an interest and appreciation for nature. Maya’s goals are to expand community action and form connections with people who also share environmental passion.

Miles headshot

Pronouns: He/Him
Hometown: Solana Beach, CA

Miles W.

Youth Website Editor

Pronouns: He/Him
Hometown: Solana Beach, CA

Miles is a sophomore at Canyon Crest Academy. He started helping lead a climate action club at his elementary school in 3rd grade, and he attended his first 350.org march at the age of 4. He manages the websites of 2 non-profit organizations and enjoys being able to help not only from his computer but out in our communities. Miles joined Youth4Climate in early 2025 and is excited to continue building meaningful change with hopes of leaving a significant and positive impact on the environment, our planet, and the people on it.

Xavier headshot

Pronouns: He/Him
Hometown:  San Diego

Xavier G.

Youth Volunteer Coordinator

Pronouns: He/Him
Hometown: San Diego

Xavier is a junior at Hilltop High School and serves as a Youth Volunteer Coordinator for Youth4Climate and Youth v. Oil. He is passionate about health justice and how it intersects with climate action, recognizing that environmental issues such as pollution, extreme heat, and climate disasters can impact community health. Through his work, Xavier is dedicated to uplifting youth voices, building awareness, and advancing equitable climate solutions that protect both people and the planet. He hopes to inspire others to join the fight against climate change.