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Arctic

Sea ice covers Canada's Hudson Bay. Artificial sea ice restoration could alter a complex web of interactions.
Posted inOpinions

Implications of Sea Ice Management for Arctic Biogeochemistry

by L. Miller, F. Fripiat, S. Moreau, D. Nomura, J. Stefels, N. Steiner, L. Tedesco and M. Vancoppenolle 30 September 202027 September 2022

Geoengineering strategies to slow sea ice melting would affect not only Earth’s climate but also the biology and chemistry of the oceans, atmosphere, and ice.

Two scientists on the flat green tundra—one holds a drone aloft, and one writes in a notebook
Posted inNews

Drones Help Bridge the Gaps in Assessing Global Change

Lesley Evans Ogden, Science Writer by Lesley Evans Ogden 27 August 202011 August 2022

New instruments in the research tool kit bolster scientific understanding of the ecology of a greening Arctic.

Charts showing cumulative future CO2 emissions (left), surface temperature anomaly (center), and year when sea-ice area drops below 1 million km2 (right) under different CMIP6 emissions scenarios
Posted inEditors' Highlights

Characteristics of Polar Sea Ice in Latest Climate Models

by Gudrun Magnusdottir 21 August 202022 April 2022

Sea ice area in CMIP6 is similar to previous versions while its sensitivity to external forcing is subtly different and closer to observations, but still not in step with global surface temperature.

Four plots showing production of greenhouse gases during laboratory incubations in organic soils and mineral soils, with and without nitrogen addition.
Posted inEditors' Highlights

Downhill from Here: Landscape Positions and Greenhouse Emissions

by W. M. Hammond 5 August 202011 August 2022

In comparing soils from two tundra wetland landscape positions, landscape position is found to matter, and toeslopes are associated with higher greenhouse gas production.

Permafrost below grass
Posted inNews

Experiments Reveal How Permafrost Carbon Becomes Carbon Dioxide

Katherine Kornei, Science Writer by Katherine Kornei 24 July 20206 September 2022

Field samples from Alaska show how sunlight and iron convert permafrost carbon to carbon dioxide. Climate models ignore this process.

The dirigible Italia docked at the base camp in Ny-Ålesund, Svalbard, prior to its crash
Posted inNews

Space Weather Lessons from a 1928 Dirigible Debacle

Rachel Fritts, Science Writer by Rachel Fritts 1 July 202023 January 2023

Analysis of a disrupted SOS signal during an early polar expedition showcases the importance of taking space weather into account when exploring new frontiers.

White smoke rising from the tundra in front of the Baird Mountains.
Posted inNews

The Rise of Zombie Fires

Kate Wheeling, freelance science writer by Kate Wheeling 30 June 202018 October 2021

Wildfires can smolder underground through Arctic winters, reigniting at the surface when conditions are right.

A rosette water sampler hangs from a cable above the Arctic Ocean surface near some sea ice
Posted inResearch Spotlights

Rastreando Elementos Traza a Través del Océano Ártico

Kate Wheeling, freelance science writer by Kate Wheeling 29 June 202014 March 2023

Durante la expedición Pan-ártica, los investigadores obtuvieron y utilizaron datos de carbono y elementos traza para comprender mejor cómo el cambio climático afectará la producción primaria en una de las regiones de calentamiento más rápido del mundo.

Picture of collapsed corner of four-story apartment
Posted inNews

The Ticking Time Bomb of Arctic Permafrost

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 24 June 202015 November 2021

Arctic infrastructure is under threat from thawing permafrost.

A rocky landscape with short vegetation in the Canadian tundra
Posted inResearch Spotlights

How Does a Greening Arctic Affect Groundwater Recharge?

Kate Wheeling, freelance science writer by Kate Wheeling 11 June 202014 March 2023

New research examines how shifts in aboveground ecology influence belowground hydrology in the Arctic.

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