Abigail Singer
Board Member

Abigail Singer is the Executive Director of Rogue Farm Corps, a co-founder and past organizer with Rising Tide North America, a member of the Work That Reconnects Facilitators Network, and a community herbalist. She has been active in movements for social, environmental and climate justice since 1998, and has a depth of experience with community organizing, nonprofit fundraising and organizational development. She joined the Bark board in 2020. Pronouns: she | her

Caleb Mammen
Board Member

Caleb is a Portland attorney representing Unions and workers. He was formerly an English teacher who taught environmental justice research and writing. He has experience with labor and employment law and representing low-income clients in family, housing, and employment matters. He spends his free time with his partner and one-eyed dog - hiking, kayaking, reading, and scuba diving. he | him

Carolyn Sweeney
Board Member

Self-employed, Artist. Bark volunteer since 2005. Carolyn has deeply engaged with Bark’s work as a member of the Forest Watch and Events Committee. She has lead hikes, protested at Northwest Natural shareholder meetings, organized dance performances for Summer School, and taught a drawing class for ecologists. Pronouns: she|her

David Osborn
Board Member

Teacher, Portland State University. Bark volunteer since 2013. For five years, David has partnered with Bark for his community-based forests/social movements courses at PSU. David is a consultant for social-change non-profits, around process, structure and governance, and has been involved in climate justice movements for almost a decade. Pronouns: he|him

Edin Cook
Board Member

Edin Cook is an artist, art educator, and climate justice organizer. As a K-12 art teacher and interdisciplinary artist, Edin is passionate about empowering youth to explore their creativity. Edin is a co-founder of SunrisePDX, where she has volunteered for the last two years. She also works on the Action Art core team in Sunrise National to train young people around the country on how to use visual strategy and storytelling as a central component to their actions and efforts to win a Green New Deal. she | her

Kari Koch
Board Member

City of Portland, Office of Community & Civic Life, Program Coordinator. Bark volunteer since January 2018. Kari brings a wealth of experience as a labor organizer, organizational development, planning and implementation. Kari is past President of the Board of Oregon Fair Trade Campaign, former Director of the Portland Central America Solidarity Committee and leader with Showing up for Racial Justice Portland. Pronouns: she|they

Matt Mavko
Board Member

Scientist/consultant, Air Sciences, Inc. Bark volunteer since 2006. Matt has volunteered for more than ten years on the Forest Watch and other committees, served as a hike leader and spent many days groundtruthing. Matt brings scientific knowledge and analytical thinking to our team. Pronouns: he|him


Brenna Bell
Policy Coordinator/Staff Attorney
Brenna brings to her work a lifetime of passion for the Pacific Northwest, twenty years of organizing experience, and an extensive background in environmental law and education. Her involvement with Cascadia Forest Alliance and the campaign to save Eagle Creek led her to Lewis & Clark Law School, where she graduated cum laude. Brenna has worked with numerous non-profits and is a co-founder of Tryon Life Community Farm - a community sustainability education center. She also lives, and is raising her two children and many goats, in Cedar Moon - the intentional community at TLC Farm. Preferred pronouns: she|her

Courtney Rae
Associate Director
Originally from east of the Mississippi, Courtney joined Bark in 2015 after five years of environmental advocacy and public education work with Environment Oregon and Columbia Riverkeeper. Courtney focuses her efforts at Bark on the big picture transformation of traditional environmentalism, conservation, and forest defense tactics, culture, and goals toward environmental justice that respects, centers, and serves IBPOC (Indigenous, Black, and People of Color) cultures, needs, and wisdom over the white supremacist status quo that traditional environmental work is built upon. She organizes Bark’s programmatic work, volunteer opportunities, and communications. she | her

Daniela del Mar
Communications Coordinator
Daniela del Mar is a transdisciplinary artist, and educator whose work revolves around fronteras culturales, translation + meaningfulness, y práctica social. Bringing a background based in traditional letterpress printing and its power to activate the individual, Daniela joins Bark as the Communications Coordinator creating strong web + print materials to support its mission. When not at Bark, you can find Daniela trying to see the ocean at every opportunity or working with edible + native plants in their garden. they | them

Justice Hager
Outreach Director
Justice has spent the last twelve years canvassing, organizing, and fundraising for a plethora of environmental and social justice organizations, including five years at Bark. They have also been active in a number of different arts projects and organizations as both an artist and a curator for the last five years both in Portland and internationally through on-line exhibitions. Preferred pronouns: they | them

Michael Krochta
Forest Watch Coordinator
Michael was magnetically attracted to Bark’s work shortly after moving to Oregon and seeing for himself the splendor of its intact forests. As a student at PSU Michael was a dedicated volunteer with Bark and helped kick-off Bark’s fledgling post-logging monitoring program, BMP2. His committment to protecting healthy ecosystems in perpetuity has played itself out in a number of ways, from field checking timber sales for the Blue Mountains Biodiversity Project to working each spring to document the Portland area’s native turtle populations. Michael firmly believes that meaningful participation in public land management starts with getting out to the woods and enjoying oneself. Preferred pronouns: he|him

Misha VanEaton
Forest Watch Assistant
Misha joins Bark after working as a wilderness guide and administrator on Bark’s neighborhood volcanoes. Misha studied sociology at Portland State where they researched ways that commodification propels traditional conservation movements. These studies led to Misha’s investment in environmental advocacy that is rooted in racial and economic justice which they bring to their work at Bark. In their free time, you can find Misha searching for the smelliest plants, the friendliest birds, and the coldest swimming holes. they | them

Nakisha Nathan
Executive Director
A leader in Portland’s Environmental Justice movement, Nakisha is a well-traveled, creative, leadership cultivator and activist. Her background in environmental science, environmental law, and community organizing inform her practice of transformational movement building. She joins Bark after working at the Coalition of Communities of Color, Sierra Club, Neighbors for Clean Air and OPAL Environmental Justice Oregon. Nakisha is dedicated to building power for a Just Transition and racial justice and serves on the boards of OPAL and the Portland African American Leadership Forum. When not at work, Nakisha can be found gaming with friends and family; hiking with her partner and two dogs; photographing Oregon’s natural landscapes, or gleefully pursuing her quest to find every member of the Araucaria araucana species in Portland. Pronouns: She | They