Damages resulting from coastal and riverine flooding in the United States exceed $32 billion annually and cause accelerating societal impacts, with disproportionate disruptions to the lives and livelihoods of vulnerable populations. Two approaches for flood risk mitigation include managed retreat from flood-prone areas, implemented in US buyout programs, and the construction of nature-based solutions (NBS).

The success of many payments for ecosystem services (PES) programs is determined, in large part, by programs’ ability to successfully enroll participants. However, underenrollment remains a frequent challenge and little systematized knowledge about the determinants of participation is available. While case studies of PES programs abound, there is less work suggesting trends or lessons that can inform improvements in PES program design or operation to increase enrollment.

Evidence assessment—identifying, evaluating, and synthesizing data and findings from previous studies—is important to inform environmental decision-making but can be slow and resource intensive. Users seeking efficiency have developed multiple definitions and methods for rapid evidence assessment (REA), raising concerns about consistency and rigor. To improve consistency and confidence in REA, the authors convened an international group of evidence users and researchers to define REA for environmental applications.

To make good decisions, researchers and practitioners need high-quality, consistent, and accessible forest data. Pilot forest accounts are one of the first steps in tracking ecosystems services, demonstrating how accounts can be created using available data and determining what questions they can help answer.

It’s critical for North Carolina agencies to focus their limited resources where they can have the greatest impact in recovering from Hurricane Helene. This analysis helps identify the species and locations most likely to have been severely affected, allowing agencies to prioritize on-the-ground assessments and recovery efforts where they are most needed.

Recent federal updates and activities modernizing regulation have elevated the importance of ecosystem services and clarified guidance for accounting for their value. These changes underscore the crucial role of ecosystem services in federal benefit–cost analysis, provide clear entry points that make it simplify and enhance transparency for agencies and stakeholders to include ecosystem services in benefit–cost analysis, and document advances in the literature demonstrating that ecosystem services can be credibly and robustly included in such analyses.

This report empirically examines the determinants of private participation in flood mitigation programs that use a payment for ecosystem services (PES) framework and suggests improved PES program designs and enhancements to their flood mitigation effectiveness. It offers evidence suggesting income from farming and potential participants' past experiences with PES programs may increase participation in programs aiming to mitigate flooding and that in turn could reduce economic damages from flooding impacts.

Despite growing interest and investment in nature-based solutions such as living shorelines in the United States, it has been difficult to expand their use. One major hurdle is permitting challenges. Florida, North Carolina, and Virginia are three states where living shoreline installations have increased. We examined what policy conditions exist in these locations to enable project permitting, as well as how to address any remaining hurdles.

Nature-based solutions (NBS) address societal challenges by managing ecosystems to provide environmental and human benefits. This report assesses 27 publicly accessible databases on NBS research and projects, highlighting their utility as well as limitations and gaps in coverage. Key recommendations include making databases downloadable, adding standardized geographic and project attributes, and improving measurement of effectiveness. Better data accessibility and consistency are essential for developing design standards and scaling up NBS implementation.

Debt-for-nature swaps on a grand scale could slow climate change and promote economic growth in the Global South.