Our Board

UPSTREAM Board Members, October 2015
Board and Staff of UPSTREAM. Seated left to right: Leslie Tamminen, Jamie Rhodes (Program Director), David Stitzhal, Marion Hunt. Back row: Mark Hays, Clayton Kyle, Dawn Erlandson, Matt Prindiville (Executive Director), Bill Sheehan (Founder and Strategic Advisor), Jon Hinck, Steve Sherman

Mark Hays – President

Mark Hays

Washington, DC

Mark Hays is a Senior Advisor for Global Witness, a non-profit campaign organization that investigates and exposes the links between natural resource exploitation, conflict and corruption and works for policy changes to solve these global problems. Mark works specifically on Global Witness’ campaign to end anonymous companies – companies with hidden ownership that are used as the financial ‘getaway cars’ for corrupt deals that fuel instability, destroy the environment and perpetuate poverty around the world.

For nearly 15 years, Mark has conducted advocacy, research and campaign development work for a wide range of social change organizations, including Oxfam America, the Sierra Club, SEIU, Public Citizen, Greenpeace, NAACP, Corporate Accountability International, and more.

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Dawn Erlandson – Vice President

Dawn Erlandson

Minneapolis, MN

Dawn Erlandson is the founder and president of Aurora Strategic Advisors, a public affairs and communications consultancy.

Dawn has 20 years of sustainability, environmental, public affairs, communications, and executive experience in Washington, D.C. and Minnesota. Dawn leads comprehensive public affairs and marketing communications efforts for many national, state and local clients.

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Steven Sherman – Treasurer

Steven Sherman

Berkeley, CA

Steven, a resource economist and consultant, is a leading technical and policy expert on the management of municipal organics such as food scraps and yard trimmings.

Having worked on municipal organics program development since the late 1980s, his consulting, research, operations, policy, education and training efforts has helped to lay the groundwork for food scraps management as a cornerstone of zero waste and advanced recycling efforts taken by local governments.

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Susan R. Clark

Susan R. Clark 2016

San Francisco, CA

Susan R. Clark is the Director of Programs for Gaia Fund, a family foundation in San Francisco organized in 1995 by its two Trustees, Christine H. Russell and Mark Schlesinger.  The Fund’s grantmaking is focused on Sustainable Agriculture, Effective Democracy, and Jewish Life and Culture in San Francisco.  Continue reading

Jon Hinck

John Hinck

Portland, ME

Jon Hinck is an environmentalist, lawyer and politician. His environmental affiliations include cofounding Greenpeace USA in 1972, directing Greenpeace International, and acting as staff attorney for the Natural Resources Council of Maine, Maine’s leading environmental advocacy group. Between 2006 and 2012, Jon served in the Maine legislature as a State Representative, and in 2013 was elected At-Large City Councilor for Portland, Maine. At NRCM, Jon worked to promote renewable energy, control mercury pollution and remove chemical hazards from Maine schools. Continue reading

Marion Hunt

Marion Hunt

New York City

Marion was born in Pennsylvania. She is a graduate of New York University and has lived in Europe but mostly in California for decades, beginning with 10 years in Motion Picture and Television, producing both documentaries and features.

For the last 25 years she has been focusing on environmental issues in philanthropy, looking especially for root cause solutions. She has been a Trustee of the Roy A Hunt Foundation for more than 35 years and is Program Officer for the Foundation’s environmental grant program, a program she helped develop.

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Clayton Kyle

Clayton Kyle


Clayton Kyle has been active as both a venture capitalist and entrepreneur in the Portland area for more than 20 years.

After receiving his undergraduate degree at Princeton and an MBA from Wharton, Clayton spent eight years at Time Warner in New York, part of that time as Controller and Director of Financial Planning at HBO. He came to Maine in 1989 to acquire and turn around a small manufacturing company.

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Leslie Mintz Tamminen

Leslie Mintz Tamminen

Los Angeles, CA

Leslie Mintz Tamminen is a consultant for Seventh Generation Advisors, a nonprofit environmental organization in Santa Monica CA.

She is the Director of the Ocean Program, and in this capacity she facilitates the Clean Seas Coalition, a growing group of statewide environmentalists, scientists, students, and community leaders pushing California to strengthen laws reducing trash in California’s seas and on beaches.

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