Science

Short‑tailed shearwaters migrate annually from southern Australia to the Bering/Chukchi Seas, historically bringing over half a million birds per day to Gambell in late August/September. Since the 2019 mass‑mortality event linked to warming waters and dwindling krill, daily counts have fallen to below 100 000 but tens of thousands still pass each day. The 2019 die‑off, the largest recorded, was primarily due to starvation amid reduced sea ice and altered food‑web dynamics.

The exhibition displays artist‑generated maps that illustrate radium‑isotope data indicating chemical changes in the Arctic Ocean.

The Alaska Earthquake Center reported that a magnitude‑6.5 quake struck the Aleutian Islands on Sept. 17, the strongest in the state that week, but only a handful of residents felt weak shaking and no damage was reported.

An Arctic webinar showcased new under‑ice vehicles—Nereid Under Ice and BRUIE—detailing recent deployment results and their relevance to planetary ocean world research.

A devastating storm that displaced over 1,500 people and destroyed villages in Western Alaska prompted residents of Kipnuk and Kwigillingok to relocate, a situation highlighted in award‑winning reporting by Yereth Rosen.

Study examines fine‑scale genetic structure and diversity among native and introduced Arctic charr populations.

The EU‑funded POLARIN project has opened its 2026 Transnational Access Call, inviting scientists to propose research on polar topics and offering free, transnational access to Arctic and Antarctic infrastructures. Proposals covering one of eight priority areas are accepted until 29 Oct 2026.

The preprint uses variable‑resolution climate models calibrated with CMIP6 Arctic and Antarctic storylines to show that storyline‑based lower‑boundary forcing influences future climate responses more strongly than horizontal resolution, with Arctic low‑level temperature and humidity dominated by the storyline and Antarctic precipitation and wind better captured under the storyline scenario.

The DEW Line was a network of 63 radar stations linked along the 69th parallel from Alaska to Baffin Island, built after a 1954 US‑Canada agreement and formally handed over on 15 April 1957; it was designed to detect bomber aircraft and became obsolete against missiles, ultimately replaced by the North Warning System in 1993.

Research shows that thinner, mobile Arctic sea ice near Wrangel Island can accumulate, creating unpredictable hazards and increasing icebreaker dependence.

The study examines how multilayer Arctic clouds interact via microphysics and radiation, employing a month of limited‑area ICON simulations.

Lightning activity in the Arctic has increased over recent years, as shown by a two‑year study.

A speculative map layers Arctic ice retreat, territorial claims, shipping, extraction, and wildlife migration to illustrate entangled Arctic change.

Ship‑based observations from Greenland to the Davis Strait reveal that iodine, sulfuric acid, and oxidized organics trigger new particle formation and foster rapid growth to cloud‑condensation‑nuclei sizes, boosting CCN concentrations up to 50‑fold near marginal sea ice.

Time series of L-band synthetic aperture radar (SAR) and optical imagery over Arctic sea ice were analyzed to assess seasonal backscatter changes during the melt season.

A study demonstrates how photovoltaic module performance varies with latitude, showing that continuous summer daylight in the High Arctic could support significant solar electricity production.

Surface temperatures around Svalbard rose more than 3°C above long‑term averages in July 2026, prompting a six‑week Barents Sea ecosystem survey by the Norwegian Institute of Marine Research to assess impacts on Arctic species and fisheries.

A Nunavut caribou hunter survived five days trapped in an Arctic blizzard after his snowmobile failed, was rescued by local search and rescue crews, and later received medical treatment in Winnipeg.

Delayed Tropospheric Response over the East Asia–Northwest Pacific Sector to Arctic ...

A recent review highlights that inconsistencies in Arctic cloud‑fraction data can alter surface shortwave radiation estimates by up to 70 W m⁻², underscoring a need for coordinated multi‑sensor observing and AI‑driven data fusion to improve climate‑assessment accuracy.

Bloom timing and intensity of Arctic phytoplankton are linked to sea ice and winter biomass, as measured by LiDAR, according to research by Peng Chen.

Parks Canada has begun an assessment of oil‑sands tailings threats to Wood Buffalo National Park, a move urged by local Indigenous communities and recommended by UNESCO inspectors. The evaluation is to be completed before the end of 2024, with a contract expected in the coming months.