Background Articles

An expert warns that early snowmelt and increasing ski tourism in vulnerable high‑altitude calving areas on Hardangervidda and Nordfjella are disturbing Norway’s wild reindeer during their critical breeding season.

We have a lot of phenological events, but how much snow and when it falls are not part of that scheme. If you did not mulch last fall, you are going to lose some and maybe many of your perennials.

Thunderstorms are rare in the cold, dry Arctic, but a surprising event in August 2019 has scientists rethinking how these storms form in polar regions. A team of researchers from the University of Science and Technology of China has uncovered new insights into this phenomenon.

A new study reports that Atlantic salmon exposed to the anti-anxiety drug clobazam during migration became bolder, passing through hydropower dams faster, though this behavior might increase predation risk later.

Ned Rozell’s article explores the vast, geologically intriguing Minto Flats near the village of Minto in Alaska, detailing its unusual gravitational characteristics, seismic history, and significance as a prime waterfowl habitat.

A warm March has triggered an early spring bloom in Finland with wood anemone and common hepatica appearing ahead of their usual schedule.

A new study finds that polar bears in Svalbard are beginning to leave their dens with cubs one week earlier than before 2016, a trend that may be linked to climate change and the resulting loss of sea ice.

The study, conducted by Canadian and Norwegian scientists, highlights that in the last decade, polar bears have on average started leaving their dens with cubs one week earlier than was recorded before 2016.

A recent report highlights the unprecedented low snowfall during the 2024-2025 winter in Anchorage and Southcentral Alaska, affecting not only the weather but also events like the Iditarod race.

Russian captains face ongoing challenges navigating the Northern Sea Route as deteriorating Arctic ice conditions persist over the next 25 years. Arctic winds have pushed multi-year ice toward the North Siberian coast, concentrating thick ice in the East Siberian and Chukchi Seas and forcing ships to change their routes.

On the last Sunday in April, I received a brief but exciting message. “Frogs are singing,” Barbara Carlson notified me.