Preprints
There are 7005 Preprints listed.
Emerging links between Greenland ice melt, Euro-Mediterranean heat extremes, and destructive convective storms
Published: 2026-05-23
Subjects: Physical Sciences and Mathematics
Greenland ice loss is accelerating, but its consequences beyond sea-level rise remain poorly understood. At the same time, the Euro-Mediterranean region is facing unprecedented summer climate extremes where the underlying mechanisms have been long debated. Here we present the first evidence of a far-reaching cascading mechanism by which Greenland ice sheet melting acts as a major forcing of [...]
Wildfire smoke offsets decades of progress in reducing ozone exposure across the United States
Published: 2026-05-23
Subjects: Atmospheric Sciences, Climate, Environmental Sciences
Ground-level ozone (O3) pollution has declined in the U.S., yet the progress has stalled in recent years, coinciding with increasing wildfire smoke. Using ensemble machine learning models trained on surface observations, we develop a gridded daily smoke O3 dataset across the contiguous U.S. from 2006-2023. We estimate that wildfire smoke placed an additional 29 million people each year in areas [...]
Trapped Lee-Wave Resonance Determines Antarctic Megadune Wavelength
Published: 2026-05-23
Subjects: Applied Statistics, Categorical Data Analysis, Design of Experiments and Sample Surveys, Earth Sciences, Fluid Dynamics, Geology, Geomorphology, Geophysics and Seismology, Glaciology, Mineral Physics, Other Earth Sciences, Paleontology, Physics, Planetary Geology, Planetary Geomorphology, Planetary Geophysics and Seismology, Planetary Glaciology, Planetary Hydrology, Planetary Mineral Physics, Planetary Sciences, Planetary Sedimentology, Sedimentology, Statistical Methodology, Statistical Models, Statistics and Probability, Stratigraphy
Snow megadunes cover 5×105 km2 of the East Antarctic plateau, biasing surface mass balance estimates and overprinting ice-core signals—yet their 2–5 km wavelength has lacked a quantitative selection mechanism for two decades. We first falsify the standard formula λ∗ = 2πU0/N through a calibration-free spatial test: eight REMA 2 m tiles across two independent locations at 81.5–82.0°S show no [...]
High Awareness, Limited Action: Explaining Attitudinal Barriers to Climate Mitigation in Academia
Published: 2026-05-23
Subjects: Higher Education
General support for climate action is widely expressed within academia and public research, with surveys consistently reporting exceptionally high levels of awareness and concern about the climate crisis. Yet, the implementation of mitigation policies in universities and research institutions remains limited. Drawing on a national survey of 4,688 academics and research personnel in France, we [...]
When Fiction Reflects Fiction: Contrarian Views of Climate Change in Popular Entertainment TV & Films
Published: 2026-05-23
Subjects: Environmental Studies
Climate contrarian discourse permeates a wide range of media outlets, including popular entertainment television shows and films. This study identifies and quantifies the frequency of these views within a large global corpus of entertainment scripts derived from film and television subtitles (N = 223,782). Additionally, drawing on a discourse studies perspective, we evaluate the performance of a [...]
Bridging social–ecological systems and ecological economics to navigate polycrisis
Published: 2026-05-22
Subjects: Social and Behavioral Sciences
Human societies and ecological systems experience interacting and compounding crises, a condition often described as ‘polycrisis’. To better navigate it, we propose a synthesis agenda at the interface of ecological economics (EE) and social–ecological systems (SES) research. Through collaborative synthesis and building on a practical framework of crisis dynamics as shocks and creeping changes, we [...]
Analysis of sub-regional climates in the European Alps based on the EEAR-Clim observational dataset
Published: 2026-05-22
Subjects: Atmospheric Sciences, Climate, Meteorology
The European Alps exhibit a complex geomorphology and undergo the influences of different climate regimes, resulting in high spatial variability of climatic variables and their changes. To provide a detailed analysis of climate regions and climatic changes occurring at a sub-regional scale during the 1961-2020 period, we exploited an updated regionalization of the European Alps that benefits from [...]
Characterization of Microplastics in Wastewater Treatment Plants and Filtration Using a Sand-Char Model
Published: 2026-05-22
Subjects: Environmental Health and Protection
The current study focused on detecting and removing microplastics (MPs) from wastewater using a low-cost filter. Microplastics are very small plastic pieces that pollute water and can harm both animals and people. For this study, water samples were collected from three treatment plants in Srinagar: Hariparbat STP, Laam STP, and Nishat WTP. The presence of microplastics was studied under stereo [...]
Deforestation Edge Effects on Soil Moisture Persistence in the Amazon Basin: Observational Evidence for Lateral Hydrological Degradation and Minimum Viable Restoration Scales
Published: 2026-05-22
Subjects: Atmospheric Sciences, Environmental Monitoring, Forest Sciences, Hydrology
Deforestation in the Amazon basin degrades not only the cleared land but also the hydrological function of adjacent intact forest. Here we combine 10 years of SMAP Level 4 root-zone soil moisture (9 km, 2015 to 2024) with Hansen Global Forest Change data (30 m) to quantify how proximity to deforestation edges affects soil moisture persistence in intact forest across the Amazon basin. We classify [...]
First Observational Evidence That Biological Giant CCN Control Urban Rainfall Character: A Natural Experiment from Islamabad's Paper Mulberry Removal
Published: 2026-05-22
Subjects: Atmospheric Sciences, Earth Sciences, Hydrology, Meteorology
Modeling studies predict that biological aerosol, specifically pollen acting as giant cloud condensation nuclei (GCCN), can modify precipitation character by initiating collision-coalescence and warm rain in shallow cloud (Steiner et al., 2015; Wozniak et al., 2018; Paukert et al., 2025). No observational study has tested this prediction. We exploit a natural experiment, the removal of ~29,000 [...]
Dendritically-Drained Peat Plateaus: A Distinctive Thaw-Sensitive Organic-Rich Permafrost Landsystem in Northwestern Canada
Published: 2026-05-22
Subjects: Physical Sciences and Mathematics
Peatlands in northwestern Canada comprise one of the most thaw-sensitive and carbon-rich permafrost landscapes of North America, and undergo rapid thaw due to surface disturbance and climate change. Dendritically-drained peat plateaus (DPPs) are a distinctive permafrost landform assemblage characterized by branching networks of channelized fens and bogs dissecting raised peat plateaus with [...]
Deep learning identification of SST teleconnections driving early-winter North Atlantic climate
Published: 2026-05-22
Subjects: Atmospheric Sciences, Climate, Meteorology, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics
Seasonal predictability over the North Atlantic-European (NAE) sector is strongly modulated by the background climate state, particularly in early winter. In this season, different ENSO teleconnections have been reported before and after the 1990s. However, these studies rely on linear analysis, and the reasons for this lack of stationarity and its implications for seasonal forecasting have not [...]
Global forest typology at 10-meter resolution for forest and land-use monitoring
Published: 2026-05-22
Subjects: Forest Management, Forest Sciences, Life Sciences, Other Forestry and Forest Sciences, Terrestrial and Aquatic Ecology
Distinguishing forest types---primary, naturally regenerating, planted, and plantation forests---from agricultural tree crops and other land uses is essential for carbon accounting, biodiversity assessment, conservation planning, and supply-chain regulation. However, no existing global dataset resolves this typology at high spatial resolution. We present the Forest Typology (ForTy) v1 dataset, a [...]
Persistent Future North Atlantic Tropical Cyclone Risk in Two Contrasting CMIP6 Scenarios
Published: 2026-05-22
Subjects: Physical Sciences and Mathematics
We analyze North Atlantic Tropical Cyclone (TC) activity using the Columbia HAZard (CHAZ) model to downscale 12 models from CMIP6 under the SSP1-2.6 and SSP5-8.5 scenarios --- those with the least and greatest anthropogenic forcing respectively. TC frequency increases along the Southeastern U.S. and declines along the Gulf under both SSPs. Greater TC frequency is not projected in the [...]
Operationalising EMS-98 Damage Classification: A UAV-to-GIS Pipeline for Macroseismic Survey Support
Published: 2026-05-22
Subjects: Computer Sciences, Databases and Information Systems, Geographic Information Sciences, Geography, Nature and Society Relations, Remote Sensing, Spatial Science
Macroseismic surveys are central to post-earthquake damage assessment but remain labour-intensive, relying on in-person inspections that delay the production of structured, georeferenced damage information. While UAV imagery and deep learning have shown promise in accelerating façade-level damage detection, two limitations recur in the literature: most models are trained on damage taxonomies that [...]