Our Team



Howard Sharfstein

Howard Sharfstein is co-founder and president of the Kulshan Carbon Trust. He is also a retired environmental attorney and former corporate sustainability leader. Howard has been an environmental professional serving in policy, technical and legal roles for 40 years. As a practicing attorney, he served as counsel to the Kimberly-Clark Corporation's Sustainability Advisory Board, and helped its Global Energy Services team develop effective strategies to reduce the company’s carbon emissions. More recently, Howard has been adjunct professor at Western Washington University since 2019 where he taught both Environmental Law & Policy and Energy Policy & Politics. Howard is currently the Climate Planning Team Leader for Peak Sustainability Group. He is thrilled to launch the Kulshan Carbon Trust and accelerate a national carbon conservation trust movement.   

Andrew Shelton


Steve Hollenhorst

Steve Hollenhorst is co-founder, vice president, and treasurer of the Kulshan Carbon Trust. He is also a Professor and, until recently, Dean of the Huxley College of the Environment at Western Washington University. Prior to that he was the Associate Dean of the College of Natural Resources at the University of Idaho, founding director of UI’s award-winning Building Sustainable Communities Initiative, founding director of the UI McCall Outdoor Science School (MOSS), and co-editor of the international academic journals Society and Natural Resources and the International Journal of Wilderness. Steve also founded the West Virginia Land Trust where he gained experience in conservation easement management. He now brings his expertise in land use policy and environmental leadership to the Kulshan Carbon Trust. 




Jessa Clark is co-founder and project leader of the Kulshan Carbon Trust. She is also a Sustainability Consultant at Peak Sustainability Group, raised in Bellingham, WA. Jessa graduated from Stanford University with a B.S. in Earth Systems and M.S. in Sustainability Science & Practice. Her aim is to equip leaders with the tools and knowledge needed to create meaningful change in their sphere and beyond. Jessa uses systems mapping and sustainability analysis to identify key leverage points for positive impact, engages diverse stakeholders in collaborative solutions, and works with businesses to integrate sustainability into corporate values and operations. She believes that a collaborative and holistic approach to solutions has the power to spark systemic change on the many critical challenges society is facing. Jessa brings this belief to her work with the Kulshan Carbon Trust.  

Martin Mehalchin

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Andrew Shelton is a director of the Kulshan Carbon Trust. He is also a climate activist, realtor, and skier residing in Bellingham WA. A PNW native raised on Bainbridge Island, life took him from college in Wooster, OH to play Div III lacrosse and then to Colorado State University to finish his degree. He fell in love with activism after running a door-to-door letter writing campaign that swung a city council members' vote on an energy efficiency initiative from no to yes. His past experiences include street canvassing in Seattle and Chicago for a child poverty NGO, captaining a commercial salmon fishing boat in Alaska, and crabbing in the Bering Sea. Because climate change has already led to changes in ocean temperatures and acidity that affect both salmon and crab stocks, he retired from the maritime life to settle down in Bellingham to start a real estate business with a goal to use the time and space the career affords to start making some serious in-roads in the effort against climate change.

Martin Mehalchin is a director of the Kulshan Carbon Trust. He is also a senior executive with PK, a global digital services firm, and has enjoyed a 25-year career in strategy and technology consulting working with some of the largest and most recognized brands in the world. Martin’s personal passions center around the environment and the outdoors. His increasing interest in solutions-oriented approaches to the climate crisis led him to his involvement with Kulshan Carbon Trust. Martin’s previous non-profit service includes 10 years on the Board of Sedro-Wooley based North Cascades Institute and several years as a strategic advisor to the Board of The Mountaineers in Seattle. Martin holds a Bachelor’s degree from the University of Colorado, Boulder and a Master’s degree from Cornell University. He lives in Seattle with his wife and family and enjoys skiing, hiking and cycling in his spare time.


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Sarah Parker

Sarah Parker wears many hats at Kulshan Carbon Trust. She received a B.A. in Biology from Lewis & Clark College and a M.A. in Environmental Studies from Western Washington University. In her work, Sarah strives to engage her community in envisioning and implementing equitable climate solutions that serve the interests of many and help secure a resilient future for all. She brings her experience in community engagement and environmental education, knowledge of environmental and climate policy, and excitement about natural climate solutions to Kulshan Carbon Trust.


Ava Stone

Ava Stone is supporting the Kulshan Carbon Trust as a graduate fellow. She received a B.S in Biology from the University of Washington and is currently pursuing a master's degree in Environmental Studies from Western Washington University. Through her thesis work on agroforestry, she is hoping to increase landholder access to innovative natural climate solutions in Washington State. She is passionate about the intersection of land use and climate change and feels inspired by the community's growing interest in these practices.