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Climate change and climate action are socially and politically divisive topics in many countries. In addition to contributing to political disparity, climate research is also affected by political context, with consequences not only for scientists but for society as well.

Oceans are on the frontline of an array of new marine–climate actions that are both poorly understood and under-regulated. Development and deployment of these interventions is outpacing governance readiness to address risks and ensure responsible transformation and effective action.

Oceans are on the front line of new planned climate actions, but understanding of novel marine-climate intervention development and deployment remains low. Here a survey among intervention practitioners allows identification of science and governance gaps for marine-climate interventions.

The terrestrial carbon flux—sources and sinks—under land-use change (LUC) is difficult to quantify. Here, using a LUC dataset drawing on remote sensing and forest inventory data, the authors show that in China the carbon sink from LUC (such as afforestation) may be underestimated.

Many climate models overestimate the snow amount in the Northern Hemisphere despite strong warming. Here the authors find that light snowfall and snow melting processes drive this mismatch and use these relationships to constrain future projections of snow water resources.

This study quantifies and values the carbon stored in the ocean due to biological processes. With uptake in the order of 2.8 Gt per year, valued at around US$1 trillion annually (at a carbon price of US$90 per ton of CO₂), this service should be included in the global stocktake and climate actions.

Analysis of satellite observations and in situ phenology records revealed a delayed onset of spring after drought in northern ecosystems. These delays are regulated by both endogenous memory within plants and exogenous memory of the environment, with the latter having a dominant role.

Under climate warming, increased microbial carbon emissions could diminish the vast carbon stores held in northern peatlands. This large-scale experimental study reveals that warming amplifies carbon uptake by peatland microalgae and partially offsets warming-related increases in microbial carbon emissions.

Cities have historically benefitted from coastal access, but sea-level rise may turn this advantage into a vulnerability. Government investment should account for future climate risks.

Governments around the world have pledged to reduce fossil fuel subsidies, yet the actual implementation has not been measured. With a unique dataset and approach, researchers find since 2016 there are more frequent reforms, yet most of them do not survive over 12 months.

Drought predictability has a large impact on climate adaptation plans, but its future changes are often unknown. A drought predictability model reveals that increases in global temperatures of 2 °C or 3 °C would cause a significant (p < 0.1) decrease in the dynamic predictability of agricultural drought in more than 70% of the global land area.

Limiting global warming to 1.5 °C requires aggressive climate pledges, but their impact on land-use strategies remains underexplored. Now, a study reveals that these commitments may drive large-scale cropland loss, intensifying food security risks, especially in the global south.

Many countries are relying on land-based strategies to meet the climate targets set out in the Paris Agreement, putting pressure on land resources. Here the authors show a global reduction in cropland area under current climate pledges, with implications for trade and food security.

The Hague in the Netherlands was the first city in the world to enact a law prohibiting advertisements for fossil fuel products and services. Although the ban is restricted to The Hague’s jurisdiction, the decision to implement the ban challenges norms and conventions that drive fossil-fuel consumption worldwide and sets an example for other governments to follow.