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Our Team

Christina Mills, Operations & Program Manager

ChristinaMills 2016 cropChristina is an experienced nonprofit professional and provides key project management and administrative support to the ClimateWise team. She is also experienced in communication and outreach, graphic design, and website development. Christina was previously the Project Scientist at the Institute for Energy and Environmental Research providing technical analysis to support advocacy of carbon-free and nuclear-free energy systems, in particular for Minnesota and Maryland. Publications include "Renewable Minnesota", "Energy Efficient and Pollution-Free Space Heating and Cooling in Maryland", and "Energy Justice in Maryland's Residential and Renewable Energy Sectors". She also worked as a Policy Analyst for Windustry, an organization that promotes community-based wind energy across the country.

Christina holds a J.D. from Hamline University School of Law in St. Paul, MN and a B.A. in Biology from St. Olaf College in Northfield, MN.


James Edson, GIS Specialist

Portrait placeholderJames uses custom developed Python scripts to analyze climate data for ClimateWise projects. He produces maps and data tables that show the expected changes under various emissions scenarios across the United States. He has a B.S. in Geography from the University of Oregon in EugeneOR.


Geoff Weaver, Business & Partnerships Manager

Geoff Weaver crop 2016

Geoff leads business strategy and partnership activities for the Geos Institute. Geoff retired from a technology career at Intel Corp where he held various positions in marketing, strategic planning and business development. During his 18 years at Intel, he built on his prior product and strategic marketing experiences at other leading technology companies to help drive Intel’s industry initiatives and to enhance the business value of wireless and other technologies under development at Intel Labs. His focus at Geos Institute is the realization of a long held dream to transition to the non-profit world while using the business skills he developed in the technology sector.

Geoff holds a B.S. in Finance from the University of Connecticut.


Marni Koopman, Climate Change Scientist

MarniKoopman2015c cropMarni brings communities the science they need to make informed decisions and walks them through a process that results in climate change strategies that are integrated across both natural and human communities. Marni has also worked on developing climate-informed conservation blueprints for the Klamath-Siskiyou ecoregion and the Colorado Plateau. Marni joined the ClimateWise team after completing postdoctoral research with the Forest Service’s Rocky Mountain Research Station. That research investigated the effects of climate change on wildlife and wildlife habitat by working with a team to model climate stress and assess the level of state planning for climate change in the State Wildlife Action Plans. Marni has expertise in climate change effects on wildlife, ornithology, metapopulation ecology, conservation genetics, and invasive species.

Marni holds a B.A. in Environmental Studies from the University of California at Santa Barbara, a M.S. in Wildland Resource Science from the University of California at Berkeley, and a Ph.D. in Ecology from the University of Wyoming.


Tonya Graham, Executive Director

TonyaGraham 2016 crop

Tonya is the Executive Director of the Geos Institute and the Director of its ClimateWise Initiative, serving as the lead for ClimateWise projects. She has taken a lead role in developing the concept of Whole Community Resilience, which takes a holistic approach to addressing climate change impacts and develops solutions that are both ecologically sound and socially equitable. She and her ClimateWise team help community leaders understand likely future conditions, determine vulnerabilities, and develop strategies to address them that care for both people and nature.

In 2019, she and her ClimateWise team launched Climate Ready Communities, an “assisted do-it-yourself" climate resilience planning program that provides affordable assistance to small, mid-sized, and/or under-resourced communities nationwide. She is a co-author of A Practical Guide to Building Climate Resilience, a free, step-by-step planning guide which serves as the foundation for the Climate Ready Communities program.

As a member of the ClimateWise team, Tonya has helped communities adapt to changing climate conditions in Oregon, California, Montana, Alaska, Texas, Kentucky, Colorado, and Ontario, Canada. In 2012 she co-organized with the Kresge Foundation the first national gathering of adaptation practitioners: The Practitioners Workshop on Climate Change Adaptation: Integrated Strategies for Human and Natural Communities. She has developed climate adaptation curricula for the Association of Climate Change Officers.

Tonya served on the Project Advisory Committee for Community-Based Adaptation in the United States: Understanding How and Why Communities are Taking Action. She is a member of the American Society of Adaptation Professionals where she has led working groups to develop climate adaptation program guidance for Congress and incoming administrations. She formerly served as the Treasurer for the Nonprofit Association of Oregon. Tonya holds a B.S. in Biophysical Environmental Studies from Northland College and a M.A. in Community Development from Goddard College.



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