Research articles

Defining thresholds for extreme weather events is important for adaptation but often ignores impacts on climate-vulnerable communities. This research finds current practices do not capture experiences of women in informal settlements and self-reported impact data could help to address the issue.

Climate change will affect the adoption of residential rooftop solar photovoltaics by changing the patterns of both electricity generation and demand. This research projects that climate change will increase the future value and optimal capacity of household rooftop solar across the United States.

Existing global economic damage assessments only focus on the impacts induced by annual temperature changes. Including variability and extremes of temperature and precipitation in climate damage projections raises global gross domestic product losses and exacerbates global disparities of economic damage.

The 15th Conference of the Parties (COP15) in Copenhagen marked an important step in global climate action with parties submitting 2020 mitigation targets. However, this retrospective study shows that many countries either have failed to meet their targets or have reduced their emissions through carbon leakage.

The authors link intensification of cold upwelling in two western boundary currents to the observed death of marine organisms, and upwelling avoidance behaviour in bull sharks. They raise concerns of increased risk of cold-mortality events for climate migrants at their poleward distribution limits.

The authors use individual-based models to assess the contribution of frugivore-mediated seed dispersal to forest restoration. They show that the movement of large birds—which disperse seeds with higher carbon storage potential—is limited in landscapes with low forest cover (<40%).

The degree to which changes in marine organisms due to warming can influence tropical cyclones is not well known. Here the authors show that changing chlorophyll patterns can lead to more landfalling tropical cyclones in East Asia.

Hydrological sensitivity describes how much precipitation changes for a given warming. Here, the authors show that the hydrological sensitivity differs between the three tropical ocean basins, which influences land rainfall changes across the tropical and mid-latitude regions.

Most of the meteorites on the Earth’s surface are found in Antarctica. Here the authors show that ~5,000 meteorites become inaccessible per year as they melt into the ice due to climate change.

The authors use resurrected strains of a diatom species to compare temperature optima, cell size and gene expression across 60 years. Modern samples have a 1 °C higher temperature optima and probably support increased nutrient uptake, highlighting the adaptation potential of diatoms to global change.

Using a global meta-analysis approach, the authors show that elevated CO₂ alone can increase primary productivity and leaf C/N ratio and stimulate nitrogen fixation and nitrogen use efficiency. They project increasing carbon sink and decreasing reactive nitrogen loss under climate change.

As the financial system is increasingly important in catalysing the green transition, it is critical to assess the impediments it may face. This study shows that existing financial regulations may impair the shift of financial resources from high-carbon to low-carbon assets.

Rapid population ageing is challenging for climate adaptation. Considering ageing demographics and green infrastructure development in 26,885 Southeast Asian communities, the authors find a reduction in green space in ageing communities, especially in socio-economically disadvantaged areas, with implications for vulnerability.

Countries use corporate tax cuts to attract foreign investment, which reshapes patterns of global production. This research shows that such competition will lead to higher carbon emissions and shift them to developing countries, while a global minimum tax could help alleviate these problems.

The coastal ocean is a dynamic environment, and CO₂ uptake is increasing faster than in the open ocean. Incorporating coastal processes into a global model shows that biological responses to climate-induced circulation changes and riverine nutrient inputs are key to the enhanced uptake.

How the climate system changes under negative emissions is not well known. Here the authors show that the mid-latitude storm tracks change in an asymmetric way, leading to stronger Northern Hemisphere and weaker Southern Hemisphere storm tracks after recovery to present-day CO₂ concentrations.

Nature-based climate solutions are widely incorporated into climate change mitigation plans and need firm scientific foundations. Through literature review and expert elicitation, this analysis shows that for some major pathways there is strong support, while for others their efficacy remains uncertain.

Innovations in methane-targeted abatement technologies (MTAT) are needed to curb climate change in the short term. This Analysis reveals the trend, distributions and diffusion of MTAT-related patents for the past few decades, highlighting the mismatch between emissions sources and technical capacity.

Grazing has been shown to have diverse effects on soil carbon, with local variation. This study assesses carbon changes related to grazing globally and finds that, although grazing has reduced soil carbon stocks, managing intensity could increase carbon uptake in both soils and vegetation.

It is important to detect human influence on the climate, but natural variability can hide signals of change. Here the authors show the anthropogenic signal has emerged for sea surface temperature seasonality, primarily driven by greenhouse gas increases, and with geographical differences in change.