Preprints
There are 4992 Preprints listed.
Half of anthropogenic warming now caused by fossil fuels
Published: 2024-09-12
Subjects: Earth Sciences, Environmental Sciences, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics
Many human activities influence the climate, such as burning fossil fuels, clearing land, growing food, and using refrigerants. Among these, fossil fuels have long been considered the primary driver of global warming. Here, the impact of fossil fuels on historical warming is reassessed using a climate emulator ensemble that accounts for key uncertainties. This reveals that, until the 2020s, [...]
Elevated Methane in Massachusetts and Rhode Island Homes Using Fracked Gas
Published: 2024-09-11
Subjects: Environmental Sciences, Pharmacology, Toxicology and Environmental Health, Public Health
We surveyed 197 Massachusetts and Rhode Island houses ranging in building style and age to test whether homes served by fracked gas have higher indoor methane concentrations ([CH4]) than in homes without gas. The answer is clearly “Yes”. From basements and single-floor slab homes to third floors of triple deckers, indoor [CH4] in households with gas service was significantly elevated over outdoor [...]
Designing a scenario of unilateral climate intervention
Published: 2024-09-11
Subjects: Climate, Environmental Studies, International and Area Studies, Other Environmental Sciences
Climate change is causing increasingly alarming global impacts, such as rising temperatures and more severe storms. Despite this, current multilateral initiatives and agreements to systematically reduce greenhouse gas emissions are completely incommensurate with the scale of the problem. Thus, we explore the potential that some unilateral actor, finding present and near-future climate changes [...]
Symmetry in mesoscale circulations explains weak impact of trade cumulus self-organisation on the radiation budget in large-eddy simulations
Published: 2024-09-11
Subjects: Physical Sciences and Mathematics
We investigate if mesoscale self-organisation of trade cumuli in 150 km-domain large-eddy simulations modifies the top-of-atmosphere radiation budget relative to 10 km-domain simulations, across 77 characteristic, idealised environments. In large domains, self-generated mesoscale circulations produce fewer, larger and deeper clouds, raising the cloud albedo. Yet they also precipitate more than [...]
HarvestStat Africa – Harmonized Subnational Crop Statistics for Sub-Saharan Africa
Published: 2024-09-10
Subjects: Agriculture, Environmental Sciences
Sub-Saharan Africa faces severe agricultural data scarcity amidst high food insecurity and a large agricultural yield gap, making crop production data crucial for understanding and enhancing food systems. To address this gap, HarvestStat Africa presents the largest compilation of open-access subnational crop statistics and time-series across Sub-Saharan Africa. Based on agricultural statistics [...]
Competitive and Cooperative Effects of Chloride on Palladium(II) Adsorption to Iron (Oxyhydr)oxides: Implications for Mobility During Weathering
Published: 2024-09-10
Subjects: Geochemistry
In surface and near-surface weathering environments, the mobilization and partial loss of palladium (Pd) under oxidizing and weakly acidic conditions has been attributed to aqueous chloride complexation. However, prior work has also observed that a portion of Pd is retained by iron (oxyhydr)oxides in the weathering zone. The effect chloride has on the relative amount of Pd mobilization versus [...]
Deployment of Enhanced Geothermal System technology leads to rapid cost reductions and performance improvements
Published: 2024-09-10
Subjects: Engineering
Following successful production testing of the world’s first horizontal well enhanced geothermal system in 2023, continued deployment and optimization of the technology across two commercial projects has resulted in significant cost reductions and performance improvements. In this paper, we present field results and updates from Fervo Energy’s enhanced geothermal system projects in Nevada and [...]
Challenges and opportunities of ML and explainable AI in hydrology
Published: 2024-09-09
Subjects: Hydrology
Machine learning (ML) is a powerful tool for hydrological modelling, forecasting, generation of new datasets, and process discovery. It is widely recognised for its ability to produce skillful predictions and generate insights about physical mechanisms through explainable AI (XAI). This manuscript outlines current progress in the use of ML in hydrology, new tools in XAI, and challenges in these [...]
Evidence supporting a broader than previously thought influence of solar activity over Earth system’s processes. Discussion of a possible mechanism.
Published: 2024-09-08
Subjects: Atmospheric Sciences, Earth Sciences, Geochemistry, Geology, Geophysics and Seismology, Meteorology, Oceanography and Atmospheric Sciences and Meteorology, Other Earth Sciences, Tectonics and Structure, Volcanology
In this article, I show lines of evidence supporting a modulation of volcanic activity and some weather phenomena by solar wind conditions in the near-Earth environment. On a daily timescale, a correlation is found between the LP earthquake activity of Kilauea volcano, related to magma transport, and the Bx component of the interplanetary magnetic field as measured in the OMNI database for [...]
Envisioning nature positive futures for Europe: Inspiring transformative change at the biodiversity nexus
Published: 2024-09-07
Subjects: Social and Behavioral Sciences
Transformative change is required to secure a liveable future for people and nature. The Nature Futures Framework (NFF) is a heuristic tool to facilitate the creation of plural visions of nature positive futures that help build shared motivation for transformative change. Integrating nexus approaches with the NFF leverages the foundational role of biodiversity in supporting desirable outcomes [...]
A Preliminary Analysis of Landsat Surface-Reflectance Data from Torch Lake in Antrim County, Michigan, from 1984 to 2023
Published: 2024-09-06
Subjects: Fresh Water Studies, Hydrology
This report describes an investigation of visible light reflectances from Torch Lake in Antrim County, Michigan. The oligotrophic lake is the largest inland lake in Michigan by volume and the second largest by surface area. Local residents have expressed concern that a recent, on-going proliferation of golden-brown algae may be impacting the water quality and aesthetics of the lake. This report [...]
Carbon storage in Northern Ireland’s aquatic ecosystems: an evidence synthesis to support policy development.
Published: 2024-09-06
Subjects: Biogeochemistry, Marine Biology, Oceanography
Blue carbon is defined as carbon that is naturally sequestered and stored in the world’s aquatic ecosystems. Governments around the world are currently seeking to develop a range of tools to help meet their commitments to reduce greenhouse gas emissions and potentially reverse anthropogenic climate change. As such, there is growing interest from policy makers in natural processes which may be [...]
Enhanced Blocking Frequencies in Very-high Resolution Idealized Climate Model Simulations
Published: 2024-09-05
Subjects: Physical Sciences and Mathematics
Atmospheric blocking is a key dynamical phenomenon in the mid- and high latitudes, able to drive day-to-day weather changes and meteorological extremes such as heatwaves, droughts and cold waves. Current global circulation models struggle to fully capture observed blocking frequencies, likely because of their coarse horizontal resolution. Here we use convection permitting, nested idealized model [...]
Slow true polar wander around varying equatorial axes since 320 Ma
Published: 2024-09-05
Subjects: Physical Sciences and Mathematics
True polar wander (TPW), the rotation of the solid Earth relative to the spin axis, is driven by changes in the Earth's moment of inertia induced by mantle convection and may have influenced past climate and life. Long-term TPW is typically inferred from large polar shifts in paleomagnetic apparent polar wander paths or computed directly by rotating them in a mantle reference frame. However, most [...]
A probabilistic model for coseismic vertical displacement hazard in coastal settings
Published: 2024-09-05
Subjects: Earth Sciences
Characterizing coastal multi-hazards in tectonically active regions requires considering possible coseismic vertical deformation. Coseismic uplift or subsidence can cause near-instantaneous meter-scale relative sea level changes that can exacerbate or reverse the effects of ongoing global sea-level rise. In this study, we developed a probabilistic model that forecasts coseismic vertical [...]