الجيولوجيا والطقس والرصد بالأقمار الصناعية والتنبؤ بالكوارث الطبيعية.
حُدِّث
Radiocarbon dating at 1 cm resolution revealed event layers in a 40 cm core that X-ray and CT missed; some match recorded earthquakes of the 13th–20th centuries.
Researchers measured crust about 13 km thick at the centre of the Turkana Rift between Kenya and Ethiopia. Thinning began about four million years ago; the study sets no date for a new ocean.
Authors of a Current Biology study modelled over 8,000 North American fossils and found detection odds fell while habitat occupancy stayed stable for four dinosaur clades.
Geological records and simulations show that two earthquakes triggered subaqueous delta collapses in an Italian lake; the authors link the delta's instability to human-driven erosion.
A global simulation for 1960–2019 sorted land by groundwater recovery after drought: 57% resilient, 15% vulnerable, 26% unstable, where repeated droughts cut recovery capacity.
Researchers documented active deformation of two newly identified slopes in West Greenland; simulations show a collapse of the larger one would send a tsunami through the whole fjord system.
DRI researchers analyzed 10 Arctic ice cores and estimate that Anaconda emissions exposed about 50.5 million Americans to arsenic levels linked to higher lung cancer risk.
Seabed sediments from the Amundsen Sea show that glacial debris from the main West Antarctic outlet glaciers almost vanished in all earlier warm periods, the authors report.
University of Zaragoza researchers compared marine sediments spanning about 750,000 years around the impact 66 million years ago. Later carbon-cycle events coincide with orbital eccentricity cycles.
In laboratory shock experiments, different zones of the same grain changed differently at identical pressure, so missing shock features do not rule out past impact exposure.
Satellite and earthquake data show the Iberian block turning clockwise, opposite to its earlier rotation. The result refines the map of active deformation at the Africa–Eurasia boundary.
The Ministry of Industry of Yakutia reported the first blue diamond of this type mined at a Russian deposit. The crystal contains boron and has no internal inclusions.
Polycyclic aromatic hydrocarbons in 40 sediment samples show fire peaks at different times in each basin, which weakens the case for global peat burning.
Two burial-dating methods gave 1.42 million years for the sediment with Mode-1 artefacts; the authors call it the earliest securely dated hominin presence in Europe.
Nitrogen isotopes in fossil plankton shells show Southern Ocean algae used about 40% less nutrients at the Eocene peak; a model links this to at least half of the CO2 rise.
Researchers scanned three North Rim caves in 25 days and found that groundwater follows joint sets and rock dip, which links present-day flow paths to regional faulting and uplift.
Researchers combined UAV and aircraft LiDAR with GIS models and field survey in the Blue Mountains; the authors report it speeds up searches in rugged terrain.
Researchers dated hemipelagic mud from the Kumano Trough by radiocarbon of organic carbon at 0.5–1 cm steps. Some age anomalies match historical earthquakes, others match no known event.
The tooth belongs to a Carcharopsis shark estimated at 5–6 m long. Per a Journal of Palaeogeography study, it is the genus's first record in northern Gondwana.
Ice cores from Canada, Greenland and Russia show heavy metal pollution that the authors attribute to Anaconda, Montana; arsenic emissions were estimated at 11 kt per year.
