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Geoffrey Hobin,


Geoff Hobin, here, wearing a climate-data tie, is the Transit Authority of River City’s Capital Projects Administrator.  While administering TARC's federal and state grants, and managing its capital improvement program, he seizes opportunities to make TARC—and the community it serves—more economically and environmentally sustainable.  He managed the development of TARC’s sustainability program, installation of bike racks on all buses, construction of a LEED Gold-certified maintenance and training facility, introduction of battery-electric buses and many building energy efficiency projects.  While working to reduce TARC’s fleet emissions, he reduces his own by commuting to work by bicycle.

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Mary McLeod Lineberry, Secretary

Mary McLeod Lineberry is retired from teaching high school biology and environmental science.  Previously, she worked in research at the University of Kentucky and the Department of Energy in Pittsburgh, PA.  She has served as director of a joint program between Lebanon Valley College and the Milton Hershey School for implementing more science in the elementary school curriculum.  She earned a BS in Microbiology and an M Ed in counseling.  Mary enjoys walking, reading, gardening, beekeeping and tending to her chickens.

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Monique Tilford, Board Member and Services Program Manager

Over the past 25 years, Monique has worked as executive director for three environmental nonprofits, managing up to 20 staff, and helped raise tens of millions of dollars as development director or director of major gifts.  She also co-authored The New York Times best-selling book, “Your Money or Your Life” (2008 edition).  She has been a member of numerous boards, most recently serving as an elected elder at her church.  She earned her B.A. from George Washington University.  After spending much of her career in Washington, DC, she moved to Louisville in 2014 with her husband and two girls.

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Cathy Smock,
VP and Book Club Co-Chair

Cathy Smock has been advocating for environmental sanity ever since she worked on the successful campaign to stop the Marble Hill nuclear power plant, 25 miles from Louisville.  A nurse by training, she has lived her life in service to children.  She raised three children, and taught knitting and crocheting to countless others in the past 25 years at the local schools.  Taking inspiration from Cat Stevens – "Tell me, where will the children play?" – Cathy sees service to others as good, but service to the planet as imperative.

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Margaret Carreiro, PhD
and Book Club Co-Chair

Margaret Carreiro earned her PhD in Botany from Univ. of Rhode Island.  She taught in UofL’s Biology Dept. from 2001 until retiring in 2018.  Her research focused on plants and decomposer organisms, including their responses to fossil-fuels combustion and invasive species.  Her Ecology courses included climate change, its causes, impacts and solutions.  Believing faculty should engaged with their communities, Dr. Carreiro wrote the Urban Forestry section of the Louisville's Climate Change Action Plan Task Force's 2008 report to the mayor, and the Louisville Tree Board's guidelines for the first local tree-canopy assessment and for continued urban forest management.  Because natural areas cannot alone conserve native species, several LCAN videos feature Margaret, inspiring others to turn their yards into native species conservation areas.

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Sarah Lynn Cunningham,

Co-Founder and Executive Director

Sarah Lynn is a licensed environmental engineer, educator and, for 50 years, activist.  (She started young, and is older than she looks!)  She holds two interdisciplinary degrees from University of Louisville: a Bachelor in Applied Science in environmental engineering and Master in Science in environmental education and history.  After retiring from civil service, she began applying her practical experience to achieving clients’ energy efficiency and renewable energy goals.  After joining the int'l Climate Reality Project and being licensed by Al Gore to give her version of "An Inconvenient Truth," she co-founded Louisville CAN.  Besides teaching for LCAN, she has taught UofL environmental engineering courses.

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Tim Darst, CPA,


Tim Darst is an environmental science instructor at Bellarmine University.  He founded and is the former Executive Director of the Kentucky Interfaith Power & Light, a non-profit organization helping people make the connection between theology and ecology.  He holds Master’s degrees in Environmental Education from the University of Louisville, and in Sustainability & Environmental Management from Harvard University.  He also serves on the boards of the Louisville Sustainability Council and Louisville Earth Walk, and on the Louisville Metro Government Waste Management District’s Advisory Committee.


Deb McChane

Deb recently retired from a career as an actuary and consultant, advising large employers and unions in the design, pricing and administration of their employee benefit programs. She earned a BS in actuarial science from the University of Nebraska. She is a longtime volunteer at the Family Community Clinic in Louisville.  In retirement, her focus is on social and environmental activism, gardening, hiking, biking, camping and serving on multiple committees and projects at her church. 

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Jada Csonka, Intern

Jada is currently a graduate student at the University of Louisville (UofL), studying Digital Politics, after earning a bachelor's degree in Political Science, also from UofL.  She is interested in the ways nonprofit organizations interact, and plans to assist LCAN in expanding on its digital impact.  She graduates soon and has begun interviewing for jobs.  (Digital politics is the study of how information technologies and politics interact.)


Art Williams, Counsel

Art has been an environmental attorney in Kentucky since 1978.  His positions have included serving as Commissioner of the state's Dept. for Environmental Protection from 1987-90 and director of the Metro Air Pollution Control District from 1997 to 2008.  During his time as the City's air pollution director, Art helped lead a community-wide stakeholder group in formulating a climate action plan with almost 200 specific strategies for reducing greenhouse gas emissions. He also served as co-chair of the Global Warming Committee for the national organization for air pollution officials and via that organization participated in several UN Framework Conventions on Climate Change, beginning with Kyoto in 1997.