Hello! I'm a Ph.D. student in the Department of Political Science and Gerald R. Ford School of Public Policy at the University of Michigan. I'm affiliated with the Climate Politics Lab and the Institute for Social Research at Michigan.


My research examines the local politics of the clean energy transition. Specifically, how siting renewable infrastructure generates distributive conflict in communities, and whether elected officials and local institutions respond when it does. I study who bears the costs and who captures the benefits when energy projects come to rural places, and what this reveals about the limits of democratic responsiveness at the local level. My work is forthcoming and published in Public Library of Science Climate and the Journal of Sustainable Forestry.


In 2024, I received a U.S. Fulbright Research Award to study energy transitions in Greece and Bulgaria. I have held research positions at the Smithsonian National Zoo and Conservation Biology Institute, Department of Energy, National Oceanic and Atmospheric Administration, Graham Sustainability Institute, and the Michigan State University Forest Carbon and Climate Program. I hold an M.S. in Data Science, a Master of Public Policy, and a B.A. in International Relations from Michigan State University.

Publications
When Conservatives Build and Liberals Block: Intra-Ideological Value Conflict in Energy Politics
Diedrich, Graham. Forthcoming 2027. In Ideology and Environmental Politics. Routledge.
Why do some liberals oppose renewable energy projects in their communities while some conservatives embrace them? Existing frameworks explain renewable energy opposition through the lens of partisan polarization and material interests but often do not account for additional intra-ideological tensions that siting conflicts routinely produce. This chapter introduces policy concretization as a theoretical framework, describing the process by which abstract policy commitments become operational through local implementation. When a renewable project is proposed, liberals who simultaneously hold climate and conservation-minded values must rank them; conservatives who hold both renewable skepticism and property rights commitments must do the same. Actors who diverge from ideological expectations then engage in rhetorical shielding, justifying their positions through the vocabulary of their own tradition rather than the opposing one. I develop this framework through a comparative case study. I conclude by outlining an empirical research agenda evaluating how competing values among elites and the mass public operate under policy concretization, and what this implies about the state of energy transitions moving forward.
Navigating Dual Enrollment: Assessing Compatibility Between Improved Management Carbon Offset Projects and Preferential Property Tax Programs Across Nine States
Diedrich, Graham, and Kylie Clay. 2025. Journal of Sustainable Forestry 44(7): 655–678.
Dual enrollment in preferential property tax programs and improved forest management carbon offset projects is recognized as a promising strategy to optimize financial benefits and achieve sustainable management objectives for landowners. Despite this, empirical studies examining this question are limited. To assess the nuances of program compatibility for dual enrollment, a policy analysis and 37 semi-structured expert interviews were conducted to explore state-level forest tax interpretations, enforcement, and county-level discretion, with a focus on harvest and forest management plan requirements. While results indicate relatively high levels of compatibility in the states assessed, none have strategic, long-term approaches addressing enrollment in both program types, with compatibility generally being contingent upon case-by-case evaluations of landowners' management objectives and program requirements. In many instances, compatibility is determined by county tax officials with varying degrees of input from state governments. This decentralized approach can lead to a confusing operating environment, potentially affecting the opportunities for landowners to participate in both programs. These issues are identified as key barriers to the expansion of market participation among small landowners, often who are interested in retaining their tax benefits provided by tax programs and may be concerned about forfeiting them to participate in an improved forest management project.
Evaluating Local Climate Policy: Municipal Action Plans through the Lens of Resilience and Environmental Justice
Diedrich, Graham. 2024. PLOS Climate 3(1): e0000395.
In the US, local governments are increasingly crucial in driving climate action. Drawing upon previous scholarly work, this study assesses nine local climate action plans in the state of Michigan. It introduces a comprehensive framework integrating climate resilience and environmental justice (EJ) indicators to evaluate plan content. Despite recognizing global climate concerns, qualitative content analysis shows that plans lack localized analyses and actions, hampering planning efforts as a result of insufficient data, minimal coordination, limited funds, and finite policy options. Key aspects like equitable resource distribution, environmental burdens, and community engagement are often overlooked. Without addressing these limitations, local governments lack the tools to effectively implement justice-oriented climate policies.
Working Papers
Do Ballots Inflate Backlash? Ambivalence Under Plurality and Ranked-Choice Voting
Diedrich, Graham, and Morela Hernandez. 2026. Working Paper.
Electoral systems shape how citizens express strongly held positive and negative evaluations of the same policy. We examine the relationship between ambivalence and incumbent opposition in the context of energy policy. Because clean energy projects offer broad societal benefits while imposing concentrated local costs, voters may simultaneously evaluate the same project positively and negatively, producing ambivalence. In our survey experiment, respondents evaluate a solar project backed by an incumbent and are randomly assigned to vote using first-past-the-post or ranked-choice voting. We find roughly 30% of Democrats, Independents, and Republicans in our sample hold ambivalent views of large-scale solar energy. Under first-past-the-post, ambivalence is associated with greater incumbent opposition. This relationship is significantly weaker under ranked-choice voting, as ambivalent voters retain the incumbent in their middle rankings. These findings show how electoral systems shape the expression of ambivalence, determining whether it appears as outright opposition or qualified support.
How Farmers Weigh Solar Adoption: Identifying Distinct Evaluation Styles Among U.S. Agricultural Producers
Diedrich, Graham, Amy Johnson, and Nathan Cooper. 2026. Working Paper.
Solar energy deployment in rural areas depends on decisions taken by farmers and agricultural landowners. Despite this, relatively few empirical studies center on the trade-offs farmers face when evaluating the adoption of small- and large-scale solar. Drawing on a survey of Virginia agricultural producers paired with latent class analysis, we identify two distinct modes of evaluation. Comprehensive Evaluators balance economic opportunities against installation and maintenance costs, while Selective Evaluators focus on concerns like agricultural displacement and show limited engagement with potential benefits. Results show that evaluation styles are the strongest predictors of adoption intentions, more than familiarity with solar, household income, age, farm size, production type, or ownership status. Semi-structured interviews corroborate this pattern, revealing how comprehensive and selective evaluators weigh competing agricultural, land-use, and environmental priorities. Our findings suggest that solar deployment in agricultural areas requires differentiated approaches that address both the benefits and concerns of development. Outreach focused primarily on benefits is unlikely to resonate with selective evaluators, whose evaluations center on concerns, undermining adoption and increasing the risk of siting conflict.
Reports
Evaluating Community Benefits: Trends in Job Creation and Funding Metrics for the Industrial Demonstrations Program
Diedrich, G. (2024). Office of Clean Energy Demonstrations, U.S. Department of Energy. Washington, D.C.
Forest Carbon Market Structures and Mechanisms
Kreye, M., Clay, K., Chizmar, S., Cooper, L., Diedrich, G., Gadoth-Goodman, D., Parajuli, R., Sutton, A. (2023). Forest Owner Carbon and Climate Education Program. East State College, PA.
From Data to Action: Harnessing GHG Inventories for Local Sustainability Initiatives
Diedrich, G. (2023). U-M Graham Sustainability Institute. Ann Arbor, MI.
Embodied Carbon Policies
Diedrich, G. (2023). MSU Forest Carbon and Climate Program. East Lansing, MI.
State Forest Certification
Diedrich, G. (2023). MSU Forest Carbon and Climate Program. East Lansing, MI.
State Cap-and-Trade Programs
Diedrich, G. (2023). MSU Forest Carbon and Climate Program. East Lansing, MI.
State-Level Forest BMPs
Diedrich, G. (2023). MSU Forest Carbon and Climate Program. East Lansing, MI.
How will the Inflation Reduction Act impact forest and carbon management?
Diedrich, G. (2022). MSU Forest Carbon and Climate Program. East Lansing, MI.
Carbon Pricing: Carbon Markets and Carbon Taxes
Diedrich, G. (2022). MSU Forest Carbon and Climate Program. East Lansing, MI.
Teaching

TA Courses

  • POLSCI 370: The Politics of Climate Change (University of Michigan) Syllabus
  • PLS 422: Seminar in Political Science (Michigan State University) Syllabus
  • PLS 494: Field Experience in Political Science (Michigan State University) Syllabus

Co-Facilitated Courses

  • ANR 210: Foundations in Connected Learning (Michigan State University) Syllabus
  • ANR 310: Integrated Learning Seminar I (Michigan State University) Syllabus
News
May 12, 2026
Confusing ballot wording may have tipped Ohio vote on renewables ban
Ohio Capital Journal, Canary Media
"When we model what the result would have looked like if everyone had voted their stated preference, the outcome flips," to 54% wanting to reverse the ban and 46% wanting to keep it, said Graham Diedrich, a University of Michigan Ph.D. student who oversaw the exit polling at a dozen locations across Richland County."

Read article →
March 6, 2025
Michigan climate action plans must better address marginalized communities, study finds
Capital News Service, City Pulse
"It's crucial that all community perspectives are involved in making these plans. That involves outreaching engagement efforts, and further studying the ways these plans impact marginalized people."

Read article →
August 26, 2024
Two PLS alumni win Fulbright U.S. Student Awards
Department of Political Science, Michigan State University
"Two Public Policy majors are among the 10 MSU students offered Fulbright U.S. Student Program grants for the 2024-2025 academic year. Graham Diedrich will be using his award to travel to Greece and Bulgaria."

Read article →
June 1, 2024
Graham Diedrich awarded the Davidson Fellowship
Environmental Science and Policy Program, Michigan State University
"Congratulations to Graham Diedrich for being awarded the Margaret A. Davidson Graduate Fellowship from NOAA's Office for Coastal Management. He is the third cohort of Margaret A. Davidson Graduate Fellows!"

Read article →
September 11, 2023
Grad students tackle sustainability one Michigan community at a time
Michigan Department of Environment, Great Lakes, and Energy
"Nine students devoted 10 weeks to the Catalyst Leadership Circle Fellowship, funded by the Michigan Department of Environment, Great Lakes, and Energy and administered by the University of Michigan's Graham Sustainability Institute."

Read article →
April 21, 2023
2023 Catalyst Leadership Circle Fellows to help Michigan communities reach their sustainability goals
School for Environment and Sustainability, University of Michigan
"Graham Diedrich is pursuing an MPP at Michigan State University with experience in research design, policy analysis and data management. Alongside Fresh Coast Climate Solutions, he will help Grand Haven and Rockford establish a greenhouse gas (GHG) emissions reduction plan."

Read article →