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The North Atlantic subpolar gyre has freshened over recent decades, a trend projected to intensify under continued global warming. This study shows that the resulting increase in stratification drives  ~ 1°C subsurface warming within a decade and a reorganisation of oceanic circulation that can enhance surface warming in the Nordic Seas.

A large-scale study on the replicability of claims from social and behavioural science journals reports that about half of the results replicate in the same patterns as the original study.

The transmission dynamics of the 2023–2024 Oropouche virus (OROV) outbreak in Brazil (Manaus City) revealed a twofold increase in Oropouche seroprevalence in Manaus, and in a separate historical reconstruction, the authors estimate that there were approximately 9.4 million OROV infections during major outbreaks across Latin America and the Caribbean.

DNA damage burden and inadequate repair in CUX2⁺ cortical layer 2/3 excitatory neurons contributes to selective vulnerability in neuroinflammatory injury.

When 100 social and behavioural science claims were examined, 34% of reanalyses closely matched the original results, with 74% reaching the same conclusion, revealing limited robustness of single-path analyses and the need to address analytical uncertainty.

Melting ice and associated sea-level change will expose new land in Antarctica. Here the authors quantify this change and combine it with our understanding of known Antarctic mineral occurrences, showing that substantial mineral deposits may become accessible over the next few centuries in Antarctica.

A study of reproducibility in a stratified random sample of 600 papers published from 2009 to 2018 in 62 journals spanning the social and behavioural sciences finds higher reproducibility among more recent papers and papers from journals that require data sharing.

Robustness checks and reproduction of analyses with existing and updated data based on 110 articles in economics and political science journals with data and code-sharing requirements found high levels of robustness and reproducibility and determined that robustness was not dependent on author characteristics or data availability.

Analysis combining multiple global tree databases reveals that whether a location is invaded by non-native tree species depends on anthropogenic factors, but the severity of the invasion depends on the native species diversity.

NASA’s Perseverance rover detected high nickel abundances in an ancient Martian river channel. Their chemistry resembles nickel enrichments in ancient Earth rocks and may hint at complex redox–organic processes in Mars’ past.

Over five years, implementation of the NHS England Lung Cancer Screening Programme achieved high early-stage detection rates and demonstrated that the programme is both feasible and scalable for reaching high-risk and underserved populations.

Based on two waves of data collection from 748 households in Hong Kong, this analysis sheds light on the number of transmission events that occurred before manifestation of symptoms in influenza A and B cases.

The Amazon faces worsening droughts, yet little is known about large-scale variation in the physiological limits of Amazon trees. Here, the authors reveal family-level conservatism in embolism resistance and estimate that Brazilian and Guiana shield forests are more resistant than Western Amazonia forests.

Observations of the shape, topography, crustal thickness and surface composition of the South Pole–Aitken impact basin on the Moon suggest a southward impact trajectory and the excavation of a discontinuous remnant magma ocean from beneath the crust.

This study surveyed key informants across 26 countries on burning plastic for waste management and energy needs. It finds high awareness of this practice, with potential drivers including inadequate waste collection and a lack of affordable fuels.

It is unclear whether the harsh abiotic conditions of drylands hinder biological invasions. This global analysis shows that drylands are vulnerable to non-native plants and are likely to become more so as native plant diversity declines and grazing pressure intensifies.

Analysis of 179 new Ebola virus sequences from patient samples collected in Guinea between March 2014 and January 2015 shows how different lineages evolved and spread in West Africa.

Humanity’s Last Exam, a multi-modal benchmark at the frontier of human knowledge, is designed to be an expert-level closed-ended academic benchmark with broad subject coverage.

In this target trial emulation study, the authors evaluate effectiveness of nirmatrelvir/ritonavir in non-hospitalized paediatric patients aged 12–17 years with SARS-CoV-2 Omicron infection and show reduced risks of 28 day all-cause mortality or hospitalization associated with the treatment.

A 15-year prospective cohort study found that during times of social unrest in Hong Kong, people experienced more conflicts with family and friends and this coincided with the use of social media—these factors were also associated with higher levels of depression.

An analysis involving the shotgun sequencing of more than 300 ancient genomes from Eurasia reveals a deep east–west genetic divide from the Black Sea to the Baltic, and provides insight into the distinct effects of the Neolithic transition on either side of this boundary.

The lowest-frequency gravitational wave background may be shaped by supermassive black hole binaries that scatter nearby stars or dark matter. In this case, the NANOGrav 15-year dataset favours dense galactic centres with 10⁶ solar masses per cubic parsec.

Activity-based protein profiling identifies covalent small molecules that potentiate the activity of the METTL5:TRMT112 complex through binding to a complexoform-restricted allosteric pocket absent in other TRMT112:methyltransferase complexes

An in-depth microbiological and metagenomic analysis of Colombian farm and fermentation facilities resulted in the design of a defined microbial community that can reproduce the flavour of fine chocolate.

Wood density is a key control on tree biomass, and understanding its spatial variation improves estimates of forest carbon stock. Sullivan et al. measure >900 forest plots to quantify wood density and produce high resolution maps of its variation across South American tropical forests.

In flowering plants, DNA–FD–14-3-3 recruits FT to the florigen activation complex both through DNA–FT interactions and by reducing liquid phase condensation of FD protein, which promotes dimerization, leading to FT recruitment.

Analyses of 34 ancient genomes from northeastern Siberia, dating to between 31,000 and 600 years ago, reveal at least three major migration events in the late Pleistocene population history of the region.

An array-based high-throughput approach termed Escherichia coli synthetic genetic array, or eSGA, now allows comprehensive genetic interaction screens in bacteria. The method makes use of bacterial conjugation and robotic technology to generate double mutants on a genome-wide scale. In this issue, another paper presents GIANT-coli, a very similar approach.

Genome-wide association studies incorporating data for populations of African ancestry provide an expanded view of the genetic basis of schizophrenia, which has previously been studied mainly in European and East Asian cohorts.

High near-surface nitrogen-fixation rates that promoted the recent growth of the Great Atlantic Sargassum Belt were tied to greater upwelling of phosphorus from the equatorial Atlantic, according to coral-bound nitrogen isotope records from the Caribbean.

The paper maps air pollution from power plants supplying electricity to US Bitcoin mines. It finds that 1.9 million people in 2022-2023 breathed toxic amounts of Bitcoin mine attributable pollution, particularly around New York City and Houston.

The Amazonas region has been the most heavily affected by COVID-19 in Brazil. In this study, the authors conduct phylodynamic analyses to assess SARS-CoV-2 lineage replacement dynamics in the region and infer the impact of population immunity on the spread and severity of the Delta and Omicron variants.

Latin Americans trace their ancestry to the admixture of Native Americans, Europeans and Sub-Saharan Africans. Here, the authors develop a novel haplotype-based approach and analyse over 6,500 Latin Americans to infer the geographically-detailed genetic structure of this population.

Inventory data from more than 1 million trees across African, Amazonian and Southeast Asian tropical forests suggests that, despite their high diversity, just 1,053 species, representing a consistent ~2.2% of tropical tree species in each region, constitute half of Earth’s 800 billion tropical trees.

A genome-wide association meta-analysis study of blood lipid levels in roughly 1.6 million individuals demonstrates the gain of power attained when diverse ancestries are included to improve fine-mapping and polygenic score generation, with gains in locus discovery related to sample size.

Whole-genome sequencing analyses of African populations provide insights into continental migration, gene flow and the response to human disease, highlighting the importance of including diverse populations in genomic analyses to understand human ancestry and improve health.

Polygenic scores for body mass index and obesity constructed using data from 5 million people with different ancestries were associated with distinct weight gain trajectories from early childhood to adulthood.

Sequences of 137 ancient and 502 modern human genomes illuminate the population history of the Eurasian steppes after the Bronze Age and document the replacement of Indo-European speakers of West Eurasian ancestry by Turkic-speaking groups of East Asian ancestry.

A large genome-wide association study of more than 5 million individuals reveals that 12,111 single-nucleotide polymorphisms account for nearly all the heritability of height attributable to common genetic variants.

Vaccination efficiency in HIV infection is hampered by the low immunogenicity of HIV-1 Env glycoprotein (Env). Here authors optimise the neutralising antibody response to Env by stabilizing the Env trimers in the context of expressing them in a Newcastle Disease Virus-like particle and providing conditions that mimics replicating virus infection.