Aspirations for a just society can motivate individuals to engage in climate action; however, public awareness of climate justice remains low, and the extent of injustice within the climate crisis is often underestimated.

As attribution studies evolve in complexity and become more present in public discourse, care is needed to ensure that the associated uncertainties and relevant contexts remain clear.

Complex interactions between drivers have hampered efforts to understand observed changes in fire behaviour worldwide. Here fire model ensembles and impact attribution show that climate change increasingly explains changes in global burned area.

The authors combine fire–vegetation models, a chemical transport model and a health risk model to link human mortality from fire emissions to climate change. They estimate that 12.8% of mortalities in 2010 were linked to climate change, with South America, Australia, Europe and boreal forests most impacted.

Multiple climate-related coastal hazards could impact people, infrastructure and ecosystems, yet previous works often focused on flooding only. By analysing the future exposure to four types of hazard along the US Southeast Atlantic coast, this research emphasizes the risks beyond flooding.

Boreal fires are expected to increase with warming, but how the aerosols emitted in these fires affect the climate is not well understood. Here the authors show that this increase in boreal fire aerosols results in a positive radiative forcing, leading to additional Arctic warming.

The influence of internet search algorithms on users’ beliefs and behaviours remains understudied. This study finds that nationwide climate concern predicted the emotional content of Google Image Search outputs, which subsequently influenced users’ climate concern and support for climate policy.

Abrupt transitions in the climate system are discussed mostly in terms of mean state changes. Here, the authors use simulations to show that a decline in Arctic sea ice can lead to a new multidecadal mode of surface temperatures in the Arctic Ocean.

Ocean alkalinity enhancement (OAE) is seen as a promising method for CO₂ removal as it alters the surface carbon equilibrium, driving the transfer of CO₂ into the ocean. Here the authors computationally map the spatiotemporal efficiency of OAE to identify locations and timing for optimal OAE deployment.

The authors provide a global, cradle-to-gate quantification of the changes in the global warming potential and sustainability index of conventional agriculture from 1961 to the 2020s. They show an eightfold global warming potential increase and threefold decrease in sustainability index, largely due to tillage, fertilizer use and irrigation.

There is a closing window of opportunity to ensure a sustainable future for all, with deep and rapid action needed this decade. Inclusive and just climate resilient development advances sustainable development and keeps open pathways to a liveable planet but requires urgent and fundamental shifts in prevailing development politics and practice.

Climate change poses a substantial threat to global health by altering environmental conditions and impacting vaccine effectiveness. We explore how climate change impacts vaccines and worsens inequities, highlighting the need for further research and targeted interventions.