Greenaction Mourns the Passing of Marie Harrison

Greenaction Board of Directors

Our board is made up of grassroots leaders from communities on the frontlines of the movement for healthy communities and environmental justice. We have a dynamic, dedicated and diverse board that guide our organization’s work and help keep us accountable to the communities we work with and for.

Roberta Camacho

Roberta is a resident and community leader in the agricultural town of Gonzales in California’s Salinas Valley. Roberta is active with the community group Asamblea de Gonzales, and worked with residents and Greenaction to defeat plans for a proposed plasma arc garbage incineration plant. Roberta played a key role with Asamblea and Greenaction to file a state civil rights complaint against the Salinas Valley Solid Waste Authority that succeeded in improving that government agency’s translation and public participation policies to make them more accessible to non-English speakers. Roberta has also helps coordinate Greenaction’s Gonzales Youth Environmental Justice Leadership Academy that has educated and empowered Latino/a high school students to be community leaders, attend college and learn about environmental justice and sustainable agriculture.

Alfredo Figueroa

Alfredo is a leader of the Sacred Sites Protection Circle, working to protect Indigenous sacred and culturally significant sites from destruction. He co-founded of Escuela de la Raza Unida in Blythe, California, and was co-founder of the United Farm Workers Union in the Coachella and Palo Verde Valleys. Alfredo was co-founder of the Colorado River Ward Valley Coordinating Committee.

David Harper

David is a tribal member of the Colorado River Indian Tribes and for many years served as Chairman of the Mohave Elders Committee. Dave was a leader of the campaign that defeated the proposed Ward Valley nuclear waste dump and is currently working with his tribe to protect sacred sites and stop pollution and industry threats to the Colorado River, tribal members, and sacred and culturally significant sites.

Marie Harrison

Marie Harrison passed away on May 5, 2019. Read more about her life and work here. Read our statement on Marie’s passing here. 

Marie was a long time Bayview Hunters Point community leader and served on Greenaction’s staff from 1999 through 2017. Marie led the campaign that closed the PG&E Hunters Point power plant and watchdogged its cleanup. Marie co-founded the Huntersview Mothers and Fathers Committee, and has helped mentor its members as they expand from Huntersview Public Housing to a community wide group, the Bayview Hunters Point Mothers and Fathers Committee for Health and Environmental Justice. Marie helped found and coordinate our Bayview Hunters Point Environmental Justice Task Force, and helped design and implement our model Diesel Education and Emissions Reduction Project.

Teresa Johnson

Teri is a mother and advisor to Children for a Safe Environment in Phoenix, Arizona. Teri got involved when her daughter passed away after growing up in a contaminated community.

Bianca Lopez

Bianca is a resident of California’s Central Valley, born in Guadalajara, Mexico and raised in Los Angeles, California. She is a bilingual Chicana mother of a two year old boy and is expecting her second child in December of 2019. Currently she is a Project Director for Valley Improvement Projects, a non-profit organization focused in social and environmental justice in Stanislaus County. She is also a full time after school program coordinator in Riverbank, California and is passionate about working with youth.

Flora Lu

Flora is an Associate Professor in the Department of Latin American and Latino Studies at the University of California, Santa Cruz. The recipient of the 2010 Golden Apple teaching award and the 2011 Excellence in Teaching Awards at UCSC, Flora develops campus/community collaborations centered on community based research and service learning where students and faculty partner with EJ organizations. Flora has worked with Native Amazonian communities in northeastern Ecuador for the past two decades, documenting ecological, cultural, and economic changes.

John Mataka, Board Treasurer,

John is a community leader with the Grayson Neighborhood Council in California’s San Joaquin Valley. John was co-founder of the Central California Environmental Justice Network, and has been an organizer and advocate for social and environmental justice for the low-income Latino communities in Stanislaus County and across the Valley. In 2014 John helped co-found the California Environmental Justice Coalition. John and the Grayson Neighborhood Council worked with Greenaction to defeat plans to import and burn medical waste and led the fight to stop the mega-expansion of the local garbage landfill.

Esperanza Maya,

Esperanza is a co-founder of El Pueblo Para Aire y Agua Limpio in KettlemanCity and helped lead the successful fight to stop the incinerator proposed by Chem Waste. Esperanza was a co-founder of California Communities Against Toxics.

Lori Thomas Riddle, Board Chair,

Lori is co-founder of the Gila River Alliance for a Clean Environment (GRACE), a grassroots tribal member organization on the Gila River Indian Community reservation in Arizona working on environmental and sacred site and cultural protection. Lori was a leader in the fights that closed the Romic toxic waste plant and the Stericycle incinerator on the reservation. Lori and her family were poisoned by living on a site contaminated by pesticides.

Betsy Lopez-Wagner

Betsy is a communications officer at the David and Lucile Packard Foundation. Her expertise is in bilingual environmental communications, political and advocacy campaigns, branding, and media relations with a racial justice lens. She was born in Blue Island, Illinois, home to a now-shuttered Clark Oil refinery, and raised in the Southwest suburbs of Chicago. She’s lived on both coasts – and north and south in between – embracing the communities where work has taken her. She now resides in San Jose, California with her family. In her early reporting career, Betsy wrote for the U.S. Forest Service, Voice of San Diego, and the Rockford Register Star. While she thrived while reporting in English and Spanish on education, health, conservation, and hyper-local community news, Betsy found her passion in the environmental movement. As a mother, working on climate and ocean conservation provides her with the opportunity to do her part to make a difference for her son and generations to come. Prior to joining the Foundation’s communications team, she served as a Spanish-language media spokesperson for two national environmental organizations and one congressional campaign; her work spanned from both coasts to the Southwest, working with the communities there and in the states in between to grow their political power and hold polluters and public officials accountable. Some of the highlights of these efforts for her include her time at Earthjustice, as well as the League of Conservation Voters, with communications work to protect the Arctic from oil drilling, garnering stronger protections for farmworkers exposed to pesticides, training grassroots leaders to testify before the Environmental Protection Agency to safeguard the Clean Power Plan, working with families across the states to promote solutions to nix diesel pollution, and serving on the steering committee of the national People’s Climate March in 2017.


Judy Brady is a cancer activist, cancer survivor and writer who works to unite cancer survivors with community and environmental health and justice organizations to stop cancer by stopping pollution.

Tessie Ester is a co-founder of the Bayview Hunters Point Mothers Committee for Health and Environmental Justice, President of the Huntersview Tenants Association and a leader in the victory that closed the polluting PG&E Hunters Point Power Plant.

Mamie Harper is a Mohave Elder of the Colorado River Indian Tribes and was a leader in the victory against the Ward Valley nuclear waste dump. Mamie and the Elders are working to evict a hazardous waste company off of tribal lands to protect the health and culture of their people.