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Eight decades of forest plot monitoring show a pervasive increase in tree mortality across Australia’s forest biomes driven by climate change, jeopardizing their role as enduring carbon sinks.

Tree cover gains in the moist tropics (1982–2015) were 56% naturally regenerated forests and 27% managed tree systems, with forest type influencing carbon recovery. Effective forest restoration requires robust tracking of forest types established by restoration efforts.

The relative contribution of lipid catabolism on fasting-induced longevity was unknown. Authors showed lifespan extension from fasting depend on silencing lipid catabolism upon nutrient replenishment through phosphorylation of NHR-49 by KIN-19.

Reported detections of gases in exoplanet atmospheres, including claims of biosignatures on K2-18 b, disappear when broader models are tested, revealing that such detections often reflect modelling limits rather than real signals.

Via an integrative modelling approach that combines population and clinical trial data, the authors find that polygenic risk score-based screening would reduce premature mortality across seven commonly screened conditions.

The extreme hot and dry conditions of 2023 reduced soil respiration and enhanced net forest carbon sequestration in Canada, offsetting wildfire emissions, according to satellite-based and in situ observations of CO₂ fluxes.

In the phase 1/2 TRIDENT-1 trial, treatment of patients with NTRK fusion–positive advanced solid tumors with the tyrosine kinase inhibitor repotrectinib—selective for ROS1, TRKA−C and ALK—was safe and resulted in durable systemic and intracranial clinical response.

An in-depth analysis of tissue biopsies from patients with multiple myeloma and CAR T cell therapy-associated immune-related adverse events (CirAEs) after treatment with commercial BCMA-targeted CAR T cell therapy shows that CD4⁺ CAR T cells mediate off-tumor toxicities and that high CD4:CD8 ratio at apheresis, robust early CAR T cell expansion, ICANS and ciltacabtagene autoleuce treatment are independently associated with the development of CirAEs.

Melanoma staging in early stage cutaneous melanoma currently excludes relevant pathology features. Here the authors develop MelanoMAP to integrate pathology images and clinical data to predict melanoma spread.

North Atlantic waters have been aging over the past three decades, indicating a slowdown in ocean ventilation. By combining observations with models, this slowdown is likely driven by climate change.

Genome-wide analyses identify 13 loci associated with susceptibility to infection with SARS-CoV-2 Omicron variants, including variation in ST6GAL1, previously associated with influenza susceptibility, and other genes involved in glycosylation processes.

CD44 expressed by fibroblastic reticular cells in secondary lymphoid organs regulates trafficking of dendritic cells, and thus has an essential role in the priming of T cells and the adaptive immune response.

Here the authors show that tissue-resident memory and exhausted T cells in tumors are distinct populations that are shaped by relative presence or absence of TCR signals, suggesting that a tailored therapeutic strategy is needed to target each subset.

This Comment highlights the multiple effects of hypothyroidism and its strong connection to non-communicable diseases (NCDs), serving as a call to action for a global alliance to recognize hypothyroidism as a modifiable risk factor for NCDs. Additionally, it emphasizes the urgent need to raise awareness and improve thyroid management to address the growing burden of NCDs.

A hierarchical cross-entropy loss is presented, which incorporates ontology structure into training and improves the out-of-distribution performance of large-scale single-cell annotation models without additional computational cost.

Comparative genomics and high-resolution mass spectrometry reveal the biosynthetic gene clusters, and vast chemical diversity of natural products that they encode, in Photorhabdus and Xenorhabdus, bacteria that interact with hosts as symbionts and entomopathogens.

Applications of optical laser-based techniques are limited by the long wavelengths of the lasers. Now, observations of phonons and thermal transport at nanometre length scales are reported with an all-hard X-ray transient-grating spectroscopy technique.

This Resource paper presents a global SARS-CoV-2 phylogenetic tree of 4,471,579 high-quality genomes consistently constructed by Viridian, an efficient amplicon-aware assembler.

Fluorescence microscopy during CryoFIB milling produces an interferogram that can be used to direct lamella production to labeled structures with accuracy beyond the axial diffraction limit. The approach relies only on real-time feedback from the structure, requiring no image registration.

Butyrophilin 2A2 is a member of the B7 costimulatory family that is expressed on antigen presenting cells and is linked to the regulation of T cells. Here the authors implicate butyrophilin 2A2 in enhancement of CD45 phosphatase activity within the immunological synapse during T cell activation, leading to expansion of regulatory T cells and reduction of proinflammatory Th17 CD4 T cells.

Kallies and colleagues examine the role of the chromatin regulator SATB1 in CD8⁺ T cell differentiation during viral infection and cancer. They show that SATB1 is a negative regulator of exhausted CD8⁺ T cell expansion and effector differentiation.

Temporal and spatial complementarities between wind and solar power strongly reduce the frequency, duration, and severity of Europe’s variable renewable energy droughts, according to a 38-year, multi-threshold analysis.

Non-pharmaceutical interventions for COVID-19 also reduced circulation of endemic viruses which may have led to immune waning. Here, the authors use multiplex serology data from King County, Washington, US to characterise age-specific changes in antibody levels to a range of endemic viruses during the COVID-19 pandemic.

The Greenland shark, the longest-living vertebrate, inhabits the dim, frigid depths of the Arctic Ocean. Despite its extreme lifespan, this study finds that its vision remains intact and well-adapted for life in dim light, revealing remarkable preservation of sensory function across centuries.

The authors previously pinpointed OLAH (oleoyl-ACP-hydrolase) as a driver of life-threatening viral diseases. Here, the authors identify increased IL-18Rα expression on CD8⁺ T cells, which acquire a reduced cytotoxic signature, correlates with severe respiratory viral infection of influenza A virus, RSV and COVID-19.

Chan and colleagues report that tumor ecosystem and microbiome features are associated with response to anti-PD-L1 avelumab plus chemoradiotherapy in patients with locally advanced head and neck cancer.

Dermatoscopy is a common method to aid in diagnosis of melanoma, however, its utility in predicting metastasis is not fully known. Here, the authors leverage a cohort of 30 dermatologists to develop models to predict prognosis from dermatoscopic images.

Nylon-11 is a common and durable polymer but possess low piezoelectric properties. Here, the authors use mechanical accelerations and strong electric fields to induce crystallization, hydrogen-bonding and dipole alignment in Nylon-11 films, achieving high piezoelectricity.

The authors present DNA-Diffusion, a generative AI framework that designs synthetic regulatory elements with tunable cell-type specificity. Experimental validation demonstrates their ability to reactivate AXIN2 expression, a leukemia-protective gene, in its native genomic context.

T-cell therapies have huge potential but face technical limitations. Here, the authors report on a dextran-based nanoparticle platform that efficiently expands T cells, enhances CAR T-cell potency, persistence, and anti-tumour efficacy, using simpler and faster methods than current techniques.

High-resolution flare footpoint observations in the extreme ultraviolet and X-rays were taken by Solar Orbiter. Combined with simulations, the results reveal that the dominant mechanism carrying flare energy through the Sun’s atmosphere can vary on small spatial scales.

In a trial involving 45 clinics and 15,596 visits, the use of an AI-based screening tool applied to ECG for opportunistic detection of advanced chronic liver disease led to a significant increase in new diagnoses compared to the standard workflow.

Graph neural networks offer a unifying artificial intelligence framework to model related objects, ranging from tissue architecture and geometrical relationships to patient similarity and multi-organ networks. Applications of this technology in nephrology include computational representation of kidney histopathology and modelling of the complex interactions between organs in kidney diseases.

EGFR inhibitors are standard of care in patients with EGFR-mutant non-small cell lung cancer (NSCLC) but resistance often develops. Here the authors report that the evolution of EGFR inhibitor resistance in EGFR-mutant NSCLC results in a sensitivity to the compound, MCB-613, and investigate the underlying mechanism of action.

The formation of glycylglycine, a simple peptide molecule, is possible under non-aqueous interstellar conditions, according to laboratory experiments. Thus, complex organics with biological relevance may predate planetary accretion.

Serapio-García, Safdari and colleagues develop a method based on psychometric tests to measure and validate personality-like traits in LLMs. Large, instruction-tuned models give reliable personality measurement results, and specific personality profiles can be mimicked in downstream tasks.

The discovery of a vast reservoir of primordial neutral hydrogen gas surrounding a young galaxy cluster just one billion years after the Big Bang offers new insight into how the first large cosmic structures assembled.

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.

In Mato Grosso, Brazil, an increase in profits from safrinha corn indirectly increases land values and forest loss, and these effects persist for several years after a shift in profits, according to an analysis that combines crop, cost, and yield data with a statistical model.

In a multicenter, randomized trial of patients with atrial fibrillation and a low risk of thromboembolic events, treatment with the anticoagulant rivaroxaban showed no benefit in reducing cognitive decline, stroke or transient ischemic attack when compared to placebo.

The effects of current protected areas on freshwater biodiversity are poorly understood. Here, the authors show that European protected areas have overall limited influence on changes in river biodiversity, underscoring the urgent need for improved effectiveness.