Our Team

Pennie Opal Plant


Pennie Opal Plant is an Indigenous grandmother of Yaqui, Mexican, undocumented Choctaw and Cherokee and European descent. Born in the shadow of the Chevron Refinery in Richmond, CA, she has been a protector and defender of the sacred system of life for over 35 years. She is co-founder, along with Shannon Biggs, of Movement Rights and is a founding member of the Bay Area Rights of Nature Alliance. She is a signatory on the Indigenous Women of the Americas Defending Mother Earth Treaty, along with Casey Camp-Horinek. Pennie is also the co-founder of Idle No More SF Bay and continues as an advisor.  She started the group, The Society of Fearless Grandmothers, which trains older women to be police liaisons and to nonviolently stand between law enforcement and younger people at direct actions.  She lives near the Richmond Chevron Refinery with her husband, daughter, grandson, six chickens and two cats.

Shannon Biggs


Shannon Biggs is the co-founder and Director of Movement Rights, a climate justice organization aligning human laws with the laws of Nature by advancing legal rights for Indigenous people, Nature and communities. Movement Rights assisted the Ponca Nation of OK to become the first tribe to recognize rights of nature for tribal lands in the US, and has key led strategic gatherings on Rights of Nature and Economics, and the Indigenous-led 2019 Frontline Oil and Gas (FOG) conference with over 200 national grassroots environmental justice and indigenous participants. Internationally she is a recognized leader of the rights of nature movement, a co-founder of the Global Alliance for the Rights of Nature (GARN), and the co-author/editor of two books including “The Rights of Nature, Making the Case for the Universal Declaration on the Rights of Nature.” With her Movement Rights’ co-founder, Indigenous activist Pennie Opal Plant, she also leads trainings on rights of nature and system change throughout the US. Previously she was a senior staffer at Global Exchange and the International Forum on Globalization. She holds a MS degree from the London School of Economics (LSE) in Economics & Empire. She lives in San Francisco, CA with her husband and a dog named Syd.

Casey Camp Horinek

In addition to her leadership as part of Movement Rights’ Board (see her full bio here), Casey Camp Horinek, Elder and Environmental Ambassador for the Ponca Nation of Oklahoma, leads our  Ponca Rights of Nature program, and co-leads our Intertribal Rights of Nature (IRON) forums, connecting tribal communities across Turtle Island interested in or actively working on passing Rights of Nature into tribal law.

Iris Rodriguez

Iris Rodriguez is an organizer, digital strategist, network producer, and artist from San Antonio, Texas. Her body of work sits at the intersection of social justice, digital strategy, and the arts with specific focus on  environmental justice, family detention, decolonization, cultural arts, digital resistance, feminism, and public archives. She is the founder of Xica Media

She is a graduate of the (former) Center for Mexican American Studies at the University of Texas at Austin. She is also a graduate of the Racial Justice Communications by the Praxis Project (National Labor College, Washington, D.C.) as well as the Inter-University Program for Latino Research (George Washington University, Washington, D.C.)