Preprints
Filtering by Subject: Life Sciences
Northward Dust-Induced Shift of Tropical Atlantic Precipitation in CMIP6 Models
Published: 2026-07-29
Subjects: Life Sciences
Mineral dust has substantially increased since the pre-industrial period, particularly over North Africa and the Atlantic Ocean. However, the impacts of increased dust burden over the tropical Atlantic Ocean on the position of the Intertropical Convergence Zone (ITCZ) and regional precipitation remain poorly resolved. Here, we analyze seven CMIP6 models participating in the Aerosol Chemistry [...]
Solar versus Diesel Powered Water Pumps in Meeting Sustainability Goals in Somalia, a qualitative study
Published: 2026-07-23
Subjects: Engineering, Life Sciences, Social and Behavioral Sciences
Somalia endowed with high solar energy is still using diesel energy as the major source of energy to pump drinking water. This put the country under question from achieving SDG 6 which targets universal access to clean and sustainably managed water. Therefore, this study gathers qualitative data from relevant key stakeholders in Puntland, Somalia through individual in-depth interviews and analyze [...]
Local thermal externalities of hyperscale datacenters: causal satellite evidence and implied cooling costs
Published: 2026-07-21
Subjects: Life Sciences, Physical Sciences and Mathematics, Social and Behavioral Sciences
Hyperscale datacenter construction converts agricultural or greenfield land into continuous heat rejection campuses, yet no causal estimate of the resulting local thermal effect exists. This paper applies a Callaway and Sant'Anna (2021) staggered difference-in-differences estimator to spatially differenced Landsat satellite thermal imagery across 59 datacenter sites in the United States, with [...]
Temperature converges, precipitation diverges: a systematic evaluation of three Quaternary paleoclimate reconstructions over the last 800,000 years
Published: 2026-07-08
Subjects: Life Sciences
Aim Spatially explicit paleoclimate reconstructions are widely used in macroecology, biogeography, and archaeology to infer past species ranges, refugia, and biodiversity dynamics. Three products, Oscillayers, Krapp et al. (2021), and PALEO-PGEM-Series, provide global bioclimatic variables across the Quaternary, yet rest on fundamentally different methodological foundations, and their mutual [...]
WITHDRAWN: Dynamics of Sea-level Changes in the Red Sea
Published: 2026-07-07
Subjects: Life Sciences
WITHDRAWN: Seasonal, Interannual and Long-term Sea-level Changes in the Arabian Gulf
Published: 2026-07-06
Subjects: Life Sciences
Dynamic physiology broadens the molecular composition of kelp-derived dissolved organic matter exported to the coastal ocean
Published: 2026-07-02
Subjects: Life Sciences
Metabolites are exuded by marine primary producers and contribute to the pool of dissolved organic matter that structures the ecology and biogeochemistry of marine ecosystems. In the coastal ocean, macroalgae such as kelps fix inorganic carbon via photosynthesis and release a fraction of that carbon as dissolved organic matter. In this study, we characterized the exo-metabolome of the globally [...]
Unraveling the mechanisms behind the triple isotopic composition of dissolved oxygen
Published: 2026-07-02
Subjects: Life Sciences
Estimating the evolution of biospheric oxygen production through time is a major challenge. The triple oxygen isotope composition of molecular oxygen (17Δ) has been proposed as a tracer of this production, as it integrates contributions from marine (17Δocean) and terrestrial (17Δterr) biospheric oxygen. The recent implementation of 17Δocean in the intermediate-complexity climate model iLOVECLIM [...]
Coastal plain retention modulates flashflood chlorophylla anomalies in the Red Sea: a CPRI based multisite analysis
Published: 2026-06-30
Subjects: Biodiversity, Earth Sciences, Ecology and Evolutionary Biology, Environmental Sciences, Food Science, Life Sciences, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics, Planetary Sciences, Research Methods in Life Sciences
The eastern Red Sea coastal margin is among the most oligotrophic large marine ecosystems on Earth, where episodic nutrient pulses from flash floods can transiently fuel phytoplankton blooms. Yet, the extent to which upstream coastal-plain geomorphology modulates the magnitude of these flood-driven chlorophylla (Chla) responses remains poorly quantified. We tested the hypothesis that narrower [...]
Lead contamination from shooting activities: bioavailability, bioaccessibility and hydrological controls on Pb geochemical partitioning in soil
Published: 2026-06-17
Subjects: Engineering, Life Sciences
Lead (Pb) contamination in soils is a persistent environmental and human health concern in areas affected by shooting activities. This study provides an integrated assessment of Pb geochemical behaviour, plant interactions, and human bioaccessibility in waterlogged alluvial wetland soils from Soglitelle (southern Italy), a natural reserve historically impacted by hunting activities. The results [...]
Bacterial tetraether lipid biosynthesis links membrane adaption to paleoclimate proxies
Published: 2026-06-15
Subjects: Life Sciences
Membrane-spanning tetraether lipids are best known as an adaptive mechanism of archaea for stabilizing their membranes under extreme conditions. Bacteria typically rely on bilayer-forming phospholipids, making the occurrence of membrane-spanning branched glycerol dialkyl glycerol tetraethers (brGDGTs) in some bacteria highly unusual. BrGDGTs occur globally in soils and sediments and exhibit [...]
Valley forests as ecological bottlenecks: Topography and resource concentration structure herbivore use in the Western Ghats
Published: 2026-06-13
Subjects: Animal Sciences, Ecology and Evolutionary Biology, Forest Sciences, Life Sciences, Plant Sciences
Large-herbivore distributions in the Western Ghats are often interpreted through the perspective of protected areas, forest loss, and human disturbance. This perspective can undermine the ecological role of valley forests and riparian lowlands in steep, human-modified landscapes. Evidence from Asian elephants and other large herbivores indicates that habitat use is shaped by interacting filters [...]
Surface Infrared Forcing as a Primary Driver of Contemporary Global Warming: A Synthesis of Biophysical, Spectral, and Land-Use Evidence
Published: 2026-06-08
Subjects: Life Sciences
The prevailing attribution of observed global warming to the radiative forcing of well-mixed greenhouse gases — principally CO₂ — rests on a framework that systematically underrepresents a class of forcings operating at the land-atmosphere interface. This paper synthesises evidence from satellite remote sensing (Duveiller et al., 2018), planetary biomass accounting (Erb et al., 2018), [...]
Integrative Biodiversity Science Informing Transformative Multiscale Governance through Diversifying Values of Nature in Scenarios and Models
Published: 2026-06-07
Subjects: Life Sciences
• Improved use of scenarios and models can contribute to enhancing the achievement of the Global Biodiversity Framework through more systemic approaches (e.g., causality frameworks, detection and attribution) and evidence-based methods (e.g., integrated use of data, scenarios, and model- based indicators) that incorporate diverse values of nature. • Scenarios play critical roles in both global [...]
Impacts of Potential Solar Radiation Modification: Systematic Review Reveals Challenges and Opportunities
Published: 2026-06-06
Subjects: Agriculture, Earth Sciences, Ecology and Evolutionary Biology, Environmental Sciences, Life Sciences, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics, Planetary Sciences, Plant Sciences
Solar radiation modification (SRM) is a proposed temporary intervention to limit global warming while mitigation efforts continue. Understanding its potential consequences for human and natural systems is essential for informed deliberations. We conducted a systematic review of the peer-reviewed literature on SRM impacts published through May 2024, identifying 289 studies, including 261 primary [...]