Category Archives: Latest Research

Recent Wildfires in Northeastern Russia Hit Record-Breaking Emissions Levels

Copernicus Biogeosciences, July 14 Total carbon emissions from widespread wildfires in northeastern Russia reached an all-time record high already in July, still early in the summer fire season. Rising global atmospheric and ground temperatures increase the frequency of these fires, which also accelerate thawing of Siberian permafrost. This releases additional carbon, adding to that released […]

IPCC Sixth Assessment Report (AR6) Release of WG1 Report: The Physical Science Basis of Climate Change

Link to SPM: IPCC Press Conference and Release of Report, live at 10AM CEST: The IPCC on Friday, August 6 approved the Summary for Policy Makers (SPM) of the Sixth Assessment (AR6), Working Group I Report (WGI), on the Physical Science of climate change, including observations and projections in cryosphere regions. The SPM […]

Patterns of Permafrost Thaw in Central Alaska: Tussock and Spruce Ecosystems May Be Protective

The Cryosphere, August 3 Permafrost with high levels of frozen organic carbon has been warming and degrading in many mixed-forest and wetland environments across central Alaska and westwards into the Seward Peninsula. These permanently frozen soils underlie approximately 40 % of the region. Thaw has penetrated deeper each year in the region around Fairbanks since […]

Record Winter Winds This Year Accelerated Loss of Thicker and Older Arctic Sea Ice

Nature Communications Earth & Environment, August 3 Newly emerging strong winds in the Beaufort Sea region may cause unusually high summer losses of the Arctic’s remaining store of old and thick sea ice. In early January of this year, sudden atmospheric warming over the central Arctic Ocean resulted in widespread and stronger winds over the […]

Thawing Permafrost Releases Unanticipated Reservoirs of “Fossil” Methane

Proceedings of the National Academy of Sciences, August 10 Two regions of Siberian permafrost seem to be releasing methane that comes from limestone caves or reservoirs, rather than decay of thawed organic material in the permafrost itself. Methane normally is released from permafrost if it thaws under wet conditions, such as from soils under lakes […]

Vulnerability of High Arctic Indigenous Communities and Ecosystems to Rising Ocean Temperatures

Nature Communications, July 22 On our present climate trajectory, the North Water ecosystem (NOW), a unique open-water ecosystem surrounded by sea ice between the northwestern coast of Greenland and Ellesmere Island in Canada, almost certainly can no longer serve as a winter refuge for keystone High Arctic mammals, or as central fishing and hunting ground […]

Past Abrupt Climate Warming Shows Cascading Impacts in Just Decades, but Persisting for Centuries

Nature Geoscience, July 29 This review paper assesses abrupt changes in climate over the past 30,000 years, and finds that interactions between the cryosphere and oceans produced some of the most dramatic events in this period, with persisting global consequences. Changes in the Atlantic Meridional Overturning Circulation (AMOC), one of Earth’s largest ocean circulation systems, […]

Accelerating Glacier Ice Loss in the Russian Arctic from Current Atmospheric and Oceanic Warming

Journal of Geophysical Research, June 30 Glaciers across the Russian Arctic are losing accelerating amounts of ice each year, especially in the western regions; where the Novaya Zemlya glaciers decreased at rates five times that of regions further east between 2010 and 2018. Novaya Zemlya currently dominates sea level rise in the Barents and Kara […]

Arctic Sea Ice Loss Far More Rapid and Extensive than Projected Using Best-fit Models

Nature Communications Earth & Environment, July 15 Model-based projections of Arctic sea ice extent have traditionally lagged behind real-world observations, in part because a large portion of global climate change models do not adequately capture specific Arctic conditions; especially ocean-atmosphere-sea ice interactions and heat transport, as well as measurements of sea ice volume (not just […]

Warm Ocean Water Accelerating Melt Rate of Langhovde Ice Shelf in East Antarctica

Nature Communications, July 9 The Langhovde ice shelf, 3 km wide is a relatively (for Antarctica) small ice shelf on East Antarctica. Measurements found that the ocean water underneath Langhovde ice shelf is warmer than the in situ freezing point of water by around half a degree or a degree, depending on the season. This […]