Background Articles

Permafrost contains microbes, mammoths, and twice as much carbon as Earth’s atmosphere. What happens when it starts to melt?

Restrictions exist for East and West Mackey, Sevena, Union, Derks and Stormy lakes in 2022

If that saying about Jan. 1 setting the tone for the year to come has any truth to it, 2022 is going to be a wild ride.

In 2021, the average temperature in Norway was normal, while precipitation was 10 percent below normal. The year is nevertheless marked by great contrasts. The summary of the weather in 2021 was presented at the Meteorological Institute's annual event Climate Status on 5 January. Here you can see video footage of Climate Status (Vimeo)

The North American beaver has expanded its range in recent years and is now colonising Arctic territory, researchers have found. More than 12,000 beaver ponds have been mapped in western Alaska – double the amount found in the region 20 years ago.

Deglaciation could increase salmon habitat by nearly 30% in the Gulf of Alaska by 2100.

On Dec. 8 and 9, U.S. Sens. Lisa Murkowski and Dan Sullivan and Rep. Don Young held a Zoom meeting between salmon researchers, tribes, and managers. Their goal was to unite these groups’ efforts to determine the cause of the ongoing Chinook declines and the sudden chum crash in Western Alaska. After two days of meetings, the groups are still at odds over what’s causing the declines, and what the best way to move forward is.

A previously unknown source of the strong greenhouse gas nitrous oxide has been found in East Siberian Yedoma permafrost. Published in Nature Communications today, the observation was made by an international group of researchers, with the lead of researchers from the University of Eastern Finland.

It has been an Arctic odyssey for the ships and crews that in November got stuck in sea-ice on the remote Northern Sea Route. After a month of icy captivity and subsequent icebreaker rescue, a convoy of nine vessels this week made it to safety in the Kara Sea. On December 7, a Russian nuclear icebreaker completed

Areas across the region broke both daily and monthly records. For King Salmon, it's the coldest November on record. In Dillingham, wind chills dropped to negative 41 degrees. That's the lowest November wind chill in 50 years.

The lab tests samples from 17 communities in Southeast, as well as from tribes on Kodiak Island.

Never before at this time of year have so many vessels been rescued out of the ice, says Russia's nuclear icebreaker operator Rosatom. It has been an Arctic odyssey for the ships and crews that in November got stuck in sea-ice on the remote Northern Sea Route.

Fish Factor: The summer setline survey could result in increased catches for most regions in 2022.

Updated and more accurate federal maps put a cluster of homes near Capisic Brook in a zone that faces once-in-a-century risks.

Salmon abundance is down and population distributions have changed, according to NOAA’s 2021 surface trawl survey.

This article details the history and environmental concerns surrounding the Red Hill fuel storage facility, including a significant fuel leak and ongoing debates over its operation and oversight.

Landslides and tsunamis aren’t historically common in Glacier Bay, but because more than half a million visitors tour the park each year park managers want to get a clearer picture of the risks of tsunamis and landslides, which have become more common recently due to a changing climate.

Multiple fish populations in the Bering Sea have experienced a slight decline, according to the 2021 Bottom Trawl survey.

Drought and extreme heat that scientists link to climate change are altering the UNESCO-protected marshlands. Iraq's average annual temperatures are increasing at nearly double the rate of Earth's.

Majestic, increasingly hungry and at risk of disappearing, the polar bear is dependent on something melting away on our warming planet: sea ice.