MaryEllen Etienne

Associate Director, U.S. Market Transformation & Development, USGBC MaryEllen Etienne is the creator of “Women in Circularity.” MaryEllen works on the Market Transformation and Development team for the U.S. Green Building Council. She has over 20 years of experience in sustainability and is a champion of the circular economy. She is a LEED® Green Associate and TRUE Advisor.

Matthew Hittle

Environmental Specialist, Ohio EPA My role at Ohio EPA is to oversee Ohio’s solid waste management districts who are partners with the State in implementing waste diversion programs and improving recycling infrastructure. I also serve as Secretary on the Board of Directors for the Association of Ohio Recyclers, an NRC affiliate.

Darek Trowbridge

Founder & CEO, Soil Carbon Management Co. Darek Trowbridge is Farmer, Winemaker, Cidermaker, and Owner at Old World Winery, a natural winery and working farm founded in the Russian River Valley of Sonoma County, California, 23 years ago in 1998 as one of the first dedicated natural wineries in California. Darek’s training in Viticulture started […]

Ava Richardson

Dir. of Sustainability, Baltimore City Dept. of Planning Ava has over a decade of experience leading public health initiatives, advocating for environmental policies, and managing programs designed to address social, racial inequities and environmental justice. She previously served as the Sustainability Manager and a Food Matters Technical Advisor in the office, where she led the […]

Keysha Burton

Director of Community Infrastructure Programs, The Recycling Partnership With more than 10 years of managing and coordinating municipal and institutional recycling programs and a strong background in communications, Keysha brings knowledge balancing communications strategies and practical recycling program operations to The Recycling Partnership.

Guisela LaTorre

Assistant Professor, Ohio State University Guisela Latorre specializes in modern and contemporary U.S. Latina/o and Latin American art with a special emphasis on gender and women artists. Her first book titled Walls of Empowerment: Chicana/o Indigenist Murals from California (U. of Texas Press 2008), explored the recurrence of indigenist motifs in Chicana/o community murals from […]

McKenna Morrigan

Policy Advisor, City of Seattle Public Utilities McKenna Morrigan is the waste prevention and product stewardship policy advisor for Seattle Public Utilities. In this role, she advocates for state and local policies to advance SPU’s vision of zero waste and support the development of a circular and inclusive economy. She is also part of the […]

Tracie Bills

VP, SCS Engineers Tracie Bills has over 27 years of materials management experience, including working for a hauler, a county government, and a non-profit; she also has over 16 years with materials management consulting firms. She has provided commercial sector materials flow assessments, organics processing research and analysis, waste characterization studies, and recycling, organics and […]

Crystal Dreisbach

Founder & CEO, Don’t Waste Durham Crystal Dreisbach is a solutionary whose life goal is to disrupt the status quo of our take-and-trash economy. She is the Founder & CEO of a nonprofit organization called Don’t Waste Durham with the mission to create solutions that prevent trash. She leads her organization in making local policy […]

Evan Novell

Sustainability Project Manager, Orlando Solid Waste Division Evan Novell is a Sustainability Project Manager with the City of Orlando’s Division of Solid Waste Management. Evan has an academic background in sustainability and has been recognized as a 40-under 40 industry leader by Waste360. His efforts with the City are focused primarily on Commercial and Multifamily […]

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