Increasing earthquake awareness: seismo-at-school Switzerland Geoscience Communication DOI 10.5194/gc-9-223-2026 21 May 2026 Although Switzerland faces moderate seismic hazard, earthquakes represent the natural risk with the greatest impact potential. As most residents have never experienced a damaging earthquake, education is critical for raising awareness and enhancing preparedness. In a recent project, we expanded the seismo@school program in Switzerland by developing new teaching materials in four languages, related classroom activities, and by installing Raspberry Shake seismometers in schools across the country. Read more
Internal tides–cyclonic eddy interaction and intermodal energy pathways: evidence from 3 km NEMO-AMAZON36 simulations Ocean Science DOI 10.5194/os-22-1545-2026 19 May 2026 Our research investigates how large waves travel deep within the ocean. Using a detailed computer model, we show that when these deep waves meet giant ocean circulation, their path is dramatically changed. They can be bent off course, split apart, or stopped completely. An underwater mountain works with this circulation to transfer the wave energy between different ocean layers. Understanding this process is vital because it controls ocean mixing. Read more
Mineral-bound organic carbon exposed by hillslope thermokarst terrain: case study in Cape Bounty, Canadian High Arctic SOIL DOI 10.5194/soil-12-633-2026 19 May 2026 This study examines organic carbon (OC)–mineral interactions in permafrost soils undergoing thermokarst degradation in Cape Bounty (Melville Island, Canada). Chemically stabilized OC accounts for 13 ± 5 % as organo-metallic complexes and 6 ± 2 % as associations with iron oxides. Including physical protection, up to 64 ± 10 % of OC is mineral-protected. Deeper layers show a sharp decline in mineral-bound OC, suggesting increased vulnerability to degradation when exposed by deep thaw features. Read more
Love number computation within the Ice-sheet and Sea-level System Model (ISSM v4.24) Geoscientific Model Development DOI 10.5194/gmd-19-4031-2026 18 May 2026 Presented here is a new model of the solid-Earth response to tides and mass changes in ice sheets, oceans, and groundwater, in of terms of gravity change and bedrock motion. The model is capable simulating mantle deformation including elasticity, transient and steady-state viscous flow. We detail our approach to numerical optimization, and report the accuracy of results with respect to community benchmarks. The resulting coupled system features kilometer-scale resolution and fast computation. Read more
Impact of spectral aerosol radiative forcing at the Izaña observatory during the August 2023 extreme wildfires Atmospheric Measurement Techniques DOI 10.5194/amt-19-3151-2026 15 May 2026 This study presents a unique near-source observational analysis of the spectral radiative effects of extreme biomass-burning aerosols during the August 2023 wildfire on Tenerife (Canary Islands, Spain). The exceptional proximity of the wildfire to the Izaña Observatory (2400 m a.s.l.) enabled a rare characterisation of aerosol optical properties, spectral solar irradiance, and surface radiative forcing under free-tropospheric conditions. Read more
Climate change drove Late Miocene to Pliocene rise and fall of C4 vegetation at the crossroads of Africa and Eurasia (Anatolia, Türkiye) Climate of the Past DOI 10.5194/cp-22-975-2026 13 May 2026 We present a new stable carbon isotope dataset from Anatolian Late Miocene to Holocene soil carbonates, which reveals that C4 grasslands emerged during Late Miocene Cooling. Uniquely, Anatolia saw a persistent return to C3 vegetation in the Early Pliocene, which impacted mammal populations. We link the return to C3 vegetation to changes in rainfall seasonality, thereby tying ecosystem responses to climatic shifts in a hotspot of projected anthropogenic climatic change. Read more
High-latitude eddy statistics from SWOT compared with in situ observations Ocean Science DOI 10.5194/os-22-1515-2026 13 May 2026 We use new observations from the Surface Water and Ocean Topography Mission (SWOT) satellite to reveal the structure of ocean eddies in the Labrador Sea at unprecedented resolution. By comparison with ship-based measurements, we show that SWOT reliably detects these features even at high latitudes, where conventional altimetry is limited. Our results provide the first detailed view of mesoscale eddies in the Labrador Sea and highlight SWOT's potential in polar regions. Read more
Modelling primary production: multitude of theories, or multitude of languages? Ocean Science DOI 10.5194/os-22-1457-2026 12 May 2026 Marine primary production (PP) is a key component of the Earth's climate system, but its current estimates and future projections are highly uncertain. We review the PP uncertainties and discuss their sources both across the ecosystem and satellite models. We propose to reduce the PP uncertainties by better addressing the PP model structures and parametrizations. We also argue that for many models it is desirable to consider spatial and temporal variability in the model parameter values. Read more
Developing Guidelines for working with Multi-Model Ensembles in CMIP Earth System Dynamics DOI 10.5194/esd-17-495-2026 11 May 2026 Multi-model ensembles are a key approach in climate model analysis, but their use involves many complex considerations. In this work, we review relevant literature and synthesize existing studies to contribute to the development of guidelines for designing and conducting ensemble analyses. This is complemented by a collection of useful resources and a discussion of emerging trends, supported by statistics tracing the number of publications. Read more
The Scotland–Canada overturning array (SCOTIA): twenty years of meridional overturning in the subpolar North Atlantic Ocean Science DOI 10.5194/os-22-1439-2026 9 May 2026 The Atlantic ocean circulation that helps regulate climate is expected to weaken this century. Long-term measurements in the subtropics now show signs of weakening, but northern data are shorter and more variable. By combining several observing systems, we reconstructed northern circulation since 2004 and found strong ups and downs, but no clear long-term weakening so far. Read more