Volume 15 Issue 10, October 2025

Scientists increasingly assess interventions against misinformation mainly via truth discernment. However, pursuing truth discernment may not be sufficiently beneficial to society if interventions do not improve behaviour and other outcomes.

Nearly one-third of the global shoreline is in the Arctic, a region undergoing some of the most rapid warming and substantial environmental transitions due to climate change. While Arctic research has largely focused on terrestrial and open-ocean systems, there is now an urgent need to focus on the unique challenges associated with changing coastal ecosystems.

Causal approaches employed at the scale of commercial agriculture are required to build high-quality evidence that climate-smart agricultural interventions result in real emissions reductions and removals. Such project-scale empirical data are additionally required to demonstrate and advance the viability of process-based models and digital measurement, reporting and verification as tools to scale soil carbon accounting.

Africa’s future climate could be shaped by solar radiation management (SRM) decisions made elsewhere. To ensure these technologies, if ever pursued, reflect principles of justice and local priorities, Africa must move from passive recipient to active leader in SRM research, governance and public engagement.

C40 is a global network of mayors united in a commitment to climate change action. Since its inception in 2005, C40 has grown to include nearly 100 of the world’s cities, maintaining high standards that focus on inclusivity, collaboration and science-based approaches to combat climate change. We interviewed members of the C40 organization, including mayors of its member cities, to ask about the history, success and challenges of C40, and their plans for future action.

Home to roughly a quarter of the world’s population, South Asia is a hotspot for global warming impacts. In this Viewpoint, nine researchers from South Asia discuss the progress made in understanding and responding to climate change in the region.

Reducing the wildfire risk of electric grids requires assessing and comparing various adaptation measures. A study shows that a grid technology innovation cuts the risk more cost-effectively than conventional approaches such as burying power lines.

Future exposure to coastal flooding in China is driven more by growing populations and economic activity rather than by rising seas and intensifying storm surges. Policymakers must anticipate these multiple risk drivers to better inform spatial planning and development strategies and to ensure effective, sustainable coastal adaptation.

Natural disturbances, such as windthrows, pest outbreaks and wildfires, pose a major economic threat for the forestry sector. By coupling spatially explicit ecological and economic forest models, this study assesses the costs of natural disturbances under current and future climate conditions for all of Europe.

Wildland fires in snow-dominated regions such as the Arctic can have profound effects on snowpack characteristics. Satellite observations reveal a delay in snow cover formation in the Arctic following major wildland fires. Machine learning and causal analyses suggest that this delay is linked to fire-induced reductions in albedo and increases in surface temperature.

Sea-level rise poses a substantial risk to coastal communities and economies, thus accurate predictions are needed to enable planning and adaptation. This Perspective provides an overview of uncertainties in model projections of sea-level rise, and how observations can be used to reduce these.

The authors assess the growing field of climate change health impact attribution. They show literature bias towards direct heat effects and extreme weather in high-income countries, highlighting the lack of global representation in current efforts.

The authors use 1,603 estimates of local extinctions from 1980 to 2021 to show that dragonfly species with wing ornamentation have disproportionately gone extinct and lost habitat because of climate change and wildfire. This highlights the important role of mating traits in species survival under change.

Coastal settlement retreat reflects human behavioural adaptation to increasing coastal climate hazards. Using night-time light data over 1992–2019, this study finds that over half of global coastal settlements have retreated, driven by insufficient infrastructure protection and adaptive capacity.

Coastal risk assessment under future climate change is important for effective adaptation, but multidimensional analyses are still rare. Here the researchers find that inappropriate development policies could have a greater effect on exposure to flooding than sea-level rise up to 2100 in China.

Climate change will raise the severity and frequency of forest disturbance, damaging the economic value of timber. Researchers show Europe’s timber-based forestry could lose up to €247 billion, yet in some regions the increase in forest productivity could offset these shocks.

River floods that occur simultaneously in multiple locations can lead to higher damages than individual events. Here, the authors show that the likelihood of concurrent high river discharge has increased over the last decades.

Wildland fires are becoming more frequent in high-latitude regions. Here the authors show that these fires delay the formation of snow cover in the Arctic, which will be exacerbated under future warming due to increases in burned areas.

How evapotranspiration changes with warming is not well understood. Here the authors show that when often-neglected land–atmosphere feedbacks are considered, evapotranspiration increases less than currently projected by offline models.

The authors combine tracking and body mass data from five migratory waterfowl species to understand their capacity to accelerate migration in response to earlier spring. They show considerable scope for faster migration by reducing the fuelling time before departure and subsequently on stopovers

Extreme events are increasingly becoming severe risks to the electric grid, yet there is limited understanding of the cost-effectiveness of adaptation investments. This research demonstrates that dynamic grid management could reduce large capital spending and limit wildfire risks in the USA.