Research Archive

Below, we list research that no longer fits our current research process and prioritized impact strategies. These reports may no longer be accurate, both with respect to the evidence presented and our assessment of the evidence. We may revise these reports in the future, depending on our research capacity and research priorities, and welcome interest in collaborating on updated evaluations. Questions and comments are welcome.

Updates to our research process

How We Determined Our 2021 Research Priorities (last updated December 2021)

Giving Green's Approach to Policy Change (last updated November 2021)

2022 Updates to Giving Green's Approach and Recommendations (last updated November 2022)

Evaluations of impact strategies

State Legislative Advocacy (last updated November 2020)

Insider Policy Advocacy: Overview (last updated November 2020)

Activism: Overview (last updated December 2021)

Activism: Cost-Effectiveness Analysis (last updated November 2021)

Evaluations of organizations

Evergreen Collaborative: Deep Dive (last updated November 2022)