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We generate datasets quantifying extreme temperature exposure in Europe using a variety of metrics at two sub-national spatial scales (NUTS 2 and NUTS 3) and three temporal scales (daily, extreme temperature wave, and yearly) from 1980-2024. These datasets capture the breadth of temperature metrics used in epidemiology, demography and environmental literature with 67 different metrics: including regionally-unusual temperature events (defined as temperatures above/below the 95/5 percentile of historical temperatures) and periods of sustained (consecutive day) exposure to extreme temperatures. Although publicly available, climate data format and spatial resolution rarely matches the structure, scale, and extent used to disseminate government statistics on health, economic, and demographic variables, and manipulating raw data is computationally expensive. Here we provide temperature data in a user-friendly format which can easily be linked to EuroStat. Our open-sourced code and reproducible methods can be extended to produce similar datasets at the global scale.
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http://dx.doi.org/10.1038/s41597-025-05352-7 | DOI Listing |
Proc Natl Acad Sci U S A
September 2025
Max Planck Institute for Solar System Research, Göttingen 37077, Germany.
Turbulent convection governs heat transport in both natural and industrial settings, yet optimizing it under extreme conditions remains a significant challenge. Traditional control strategies, such as predefined temperature modulation, struggle to achieve substantial enhancement. Here, we introduce a deep reinforcement learning (DRL) framework that autonomously discovers optimal control policies to maximize heat transfer in turbulent Rayleigh-Bénard convection.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
September 2025
Department of Bioengineering, Stanford University, Stanford, CA 94305.
Despite periods of permanent darkness and extensive ice coverage in polar environments, photosynthetic ice diatoms display a remarkable capability of living inside the ice matrix. How these organisms navigate such hostile conditions with limited light and extreme cold remains unknown. Using a custom subzero temperature microscope during an Arctic expedition, we present the finding of motility at record-low temperatures in a Eukaryotic cell.
View Article and Find Full Text PDFJ Phys Chem Lett
September 2025
Center for Science at Extreme Conditions (CSEC) and the School of Physics and Astronomy, The University of Edinburgh, EH9 3JZ Edinburgh, United Kingdom.
Through high-pressure diamond anvil cell experiments, we report the synthesis of two novel potassium superhydrides (KH-I and KH-II) and investigate their structural and vibrational properties via synchrotron X-ray powder diffraction and Raman spectroscopy, complemented by density functional theory (DFT) calculations. Above 17 GPa at room temperature, KH-II and H react to form KH-I; this reaction can be accelerated with temperature. KH-I possesses a face-centered-cubic () potassium sublattice with a slight rhombohedral distortion (space group 3̅).
View Article and Find Full Text PDFBackground And Aims: Trait-based approaches have advanced our understanding of plant strategies, yet they often focus on leaf-level traits, overlooking the functional roles of stem anatomy and twig characteristics. We investigated intraspecific trait variation in Salix flabellaris, an alpine dwarf shrub, along climatic gradients in the Himalayas. Our goal was to identify distinct axes of trait variation related to stem, twig, and leaf traits, assess their environmental drivers, and evaluate population-specific growth responses to recent climate change.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
School of Integrated Circuits, State Key Laboratory of New Textile Materials and Advanced Processing, Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Huazhong University of Science and Technology, Wuhan, 430074, China.
Low-temperature rechargeable batteries face great challenges due to the sluggish reaction kinetics. Redox covalent organic frameworks (COFs) with porous structures provide a viable solution to accelerate the ionic diffusion and reaction kinetics at low temperatures. However, the applications of COFs in low-temperature batteries are still at their infancy stage.
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