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Alaska

A bald eagle perches on a lichen and moss-covered branch sticking out of a large tree trunk, with pine trees visible in the background.
Posted inResearch Spotlights

To Meet Climate Goals, Protect the Tongass and Chugach Forests

Rachel Fritts, Science Writer by Rachel Fritts 22 November 20231 December 2023

The two largest U.S. national forests, both in Alaska, have low wildfire risk and provide crucial forest carbon stocks and biodiversity benefits.

Posted inThe Landslide Blog

The deadly 20 November 2023 landslide near Wrangell in Alaska, USA

by Dave Petley 22 November 202322 November 2023

The Landslide Blog is written by Dave Petley, who is widely recognized as a world leader in the study and management of landslides. At about 9 pm local time on 20 November 2023, a large landslide occurred near to Wrangell in Alaska, USA. At the time of writing, three people have been confirmed to have […]

A man wearing a blue life vest stands knee deep in water to collect a water sample downstream of the large glacier in the background.
Posted inResearch Spotlights

Measuring Carbon’s Flow from Land to Sea

by Rebecca Owen 21 November 202321 November 2023

A new study catalogs how dissolved inorganic carbon moves through southeast Alaska’s waterways.

Map of study area with symbols.
Posted inEditors' Highlights

Machine Learning Identifies Source Volcanoes of Ash Deposits

by Paul Asimow 8 November 20236 November 2023

Tracing ash layers from explosive eruptions back to their source volcanoes is needed to evaluate hazards to population and aviation, a problem addressed by a new machine learning classification method.

A satellite image of Earth’s surface shows gray material—airborne dust—fanning out over a landscape of snowy mountain peaks and vegetated lowlands.
Posted inENGAGE, News

Protein Powder Makes Ice Crystals Flower

Katherine Kornei, Science Writer by Katherine Kornei 26 September 202326 September 2023

Dust from Alaska is particularly effective at forming ice crystals because it contains biological components, researchers believe. The finding has implications for cloud physics and our planet’s climate.

Posted inFeatures

Как необычная дружба разрушила мифы о вечной мерзлоте

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 20 September 202320 September 2023

“Прекрасные долгие споры” между американским ученым и российским исследователем помогли прояснить несколько фундаментальных предположений о таянии вечной мерзлоты.

Diagram from the paper.
Posted inEditors' Highlights

Northern Ecosystems are Shaped by Snow

by David S. Schimel 12 September 202313 September 2023

Changing climate in the Arctic leads to a shorter snow season but deeper snow in the depths of winter. Under the insulating snow, biological processes are accelerated leading to higher nutrient availability and carbon losses.

An emperor penguin is standing on a sheet of ice with a row of other penguins sliding on their bellies.
Posted inEditors' Vox

Landfast Sea Ice: The Most Important Ice You’ve Never Heard Of

by Pat Wongpan and Alexander D. Fraser 22 August 202321 August 2023

Landfast sea ice, sea ice that is held stationary against the Antarctic continent, links firmly with many key climate processes, but its importance is only being fully realized as its extent dwindles.

A beaver swims with a stick through a creek in front of tall grass and brush.
Posted inResearch Spotlights

Beavers Are Remaking Microbial Ecosystems in the Arctic

by Saima May Sidik 22 August 202322 August 2023

As beavers expand their range northward into the Arctic tundra, changes in bacterial, archaeal, and fungal communities appear to be following.

Photo of a riverbank in Alaska.
Posted inEditors' Highlights

Frozen Riverbanks May Erode Faster in a Warming Arctic

by Marisa Repasch 16 August 202315 August 2023

Frozen flume experiments reveal the sensitivity of permafrost riverbank erosion to water temperature, bank roughness, and pore-ice content.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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