Navigating Complex Climate Change Risks

This episode discusses how climate change mitigation and adaptation policies implemented by individual nations generate significant cross-border effects that affect other countries. Nine policy domains are mapped out to illustrate these dynamics including energy, trade, and finance, that alter five types of transnational flows, including trade, technology, and people. These alterations are transmitted internationally through four core mechanisms: prices, production factors, social norms, and security considerations. While these measures can create valuable opportunities by reducing global technology costs, they frequently pose severe risks for vulnerable developing economies with limited fiscal buffers. Enhanced policy coherence and international cooperation is needed to better anticipate these transboundary risks and safeguard global sustainable development.The podcast draws on a new article from the Climate Risk Lab recently published in the prestigious journal Global Environmental Change: Cross border consequences of responses to climate change: Risks and opportunities, https://doi.org/10.1016/j.gloenvcha.2026.103245

This Rest is Climate Podcast highlights a newly published systematic review examines the implementation, effectiveness, and feasibility of nature-based solutions and ecosystem-based adaptation across one hundred and twelve studies in African cities. The research demonstrates that while these green initiatives are widely deployed to mitigate urban heat and reduce flood risks, documented evidence remains heavily concentrated in a small number of large metropolitan areas. Beyond their environmental benefits, these interventions frequently improve livelihood security and biodiversity, highlighting their crucial role in addressing socioeconomic vulnerabilities alongside climate hazards. However, project success is frequently hindered by a lack of long-term funding for maintenance, land-use competition, and institutional challenges. Ultimately, the findings emphasize that multi-stakeholder collaboration and meaningful community participation—particularly within informal settlements—are essential for ensuring that urban nature-based strategies deliver equitable and lasting resilience. To read the article for your self: Rule et al 2026. A systematic review of nature-based solutions for climate action in African cities, Environmental Research Letters. https://doi.org/10.1088/1748-9326/aeb0ba

This Rest is Climate podcast presents a framework for attributing systemic risk in urban environments to specific drivers like climate hazards, exposure, vulnerability, and societal responses. It argues that urban crises, such as the Cape Town "Day Zero" drought, are shaped not only by extreme weather but also by governance delays, unequal household capacities, and infrastructure design. By calculating a proportional "risk budget", the framework helps decision-makers identify which factors most influence a crisis and where adaptation investments should be prioritised. The author emphasises that human responses and socio-economic inequalities often contribute as much to systemic failure as the physical hazard itself. Ultimately, the research supports a more strategic and equitable approach to urban risk management by making complex interdependencies governable. This methodology encourages shifting focus from retrospective disaster analysis toward proactive, evidence-based policy interventions.

This episode outlines the development of a crowd-sourced global directory designed to identify grey literature for systematic reviews of climate solutions. Recognizing that critical evaluation evidence is often produced by governments, NGOs, and private organisations outside traditional academic channels, the researchers propose a living database to address the limitations of existing, static search guides. The project employs a community-contribution model to aggregate local knowledge from a diverse network of international experts, aiming to capture insights from the Global South and Indigenous-led initiatives that are frequently underrepresented. By combining targeted market research with public submissions, the directory seeks to improve the comprehensiveness and equity of evidence identification in climate policy research. Ultimately, this open-access resource will provide a structured framework for categorising literature sources, ensuring that researchers can more effectively locate the real-world data necessary to address global climate risks.It is based on a recent paper from the Climate Risk Lab: Fenton Villar, P., & Simpson, N. P. (2026). Protocol for a Crowd-Sourced Living Global Directory of Grey Literature Sources for Systematic Reviews of Evaluations of Climate Solutions. Campbell Systematic Reviews: Better Evidence for a Better World, 22(3). https://doi.org/10.1177/18911803261486366

This podcast highlights urban areas are essential hubs for integrating environmental policy with public health, potentially preventing millions of deaths by addressing the intersection of climate change and human well-being. This research identifies eight action domains, including sustainable food systems and nature-based solutions, that provide immediate, local advantages alongside long-term global cooling. By focusing on synergistic interventions, such as active travel and energy-efficient housing, cities can achieve significant improvements in air quality and physical health while reducing greenhouse gas emissions. This approach transforms health benefits from a secondary consideration into a primary motivation for climate investment, offering a practical framework for meeting international sustainability targets. Ultimately, the authors advocate for integrated research and policy to capitalise on these near-term gains, ensuring that urban development prioritises both a stable climate and a thriving population.It draws on recently published paper from the Climate Risk Lab: Eight urban action domains for improved climate-health outcomes. Nature Health (2026). https://doi.org/10.1038/s44360-026-00198-8