Category Archives: Latest Research

Snow Depth and Duration Rapidly Decreasing Across the Entire European Alps

The Cryosphere, March 18 The first Alpine-wide analysis of snow trends, based on in situ measurements from six Alpine countries has revealed a significant decrease in snow. The snow season or duration has shrunk by 22-34 days in the region; with a decline in snow depth of around 40%, or 8.4% on average every decade, […]

Acceleration of Western Arctic Sea Ice Loss Linked to Warming Pacific Air Currents

Nature Communications, March 9 The western Arctic – located north of Alaska and Canada – has seen the fastest sea ice decline in centuries. The Pacific North American (PNA) air currents are one of the important drivers of this sea ice decline, accounting for more than 25% of the reduction. PNA circulation has pushed heat […]

Future Increase in Glacial Lakes in Himalayas and Central Asia

Journal of Glaciology, March 2 This new inventory of potential future lakes detected more than 25,000 “overdeepenings” (valleys gouged into the bedrock underneath glaciers due to water erosion) in High Mountain Asia that are over 1,000 m2 large, and nearly 3,000 overdeepenings over 10,000 m2. Water from precipitation and ice melt can accumulate in these deep […]

Sea-level Rise by 2100 Could Exceed IPCC Projections Under High Emissions Scenarios

One Earth, December 18, 2020 In relation to the above work on Antarctic sea-level rise, this late 2020 paper by several past and present IPCC authors may be of interest.  It addresses concerns that many current ice sheet models and data sets may well underestimate projections of sea-level rise from the Greenland and Antarctic ice […]

Projections of Antarctic Ice Sheet Loss by 2100 Using CMIP6 Models for IPCC AR6

The Cryosphere, February 26 The contribution of Antarctica to global sea level rise by 2100 varies widely based on the many different models included in the new “ISMIP6” effort. This work is based on the CMIP6 earth systems models developed for the next IPCC Assessment Report, AR6, Part 1 of which will be released in […]

One of Earth’s Largest Ocean Circulation Systems Slows to Unprecedented Rates

Nature Geoscience, February 25 After a long and relatively stable period, one of Earth’s largest ocean circulation systems — the Atlantic Meridional Overturning Circulation (AMOC) —started weakening during the early 19th century; followed by a second, more rapid, decline in the mid-20th century. Over the past few months, according to this study the AMOC has […]

Melting of Southern European Glacier is Faster Than in any Previous Warm Phase During the Last 2000 Years

The Cryosphere, March 3 The response of glaciers in southern European mountain ranges, such as the Pyrenees, to previous warm periods in the Holocene (an epoch covering the previous 12,000 years) has not been well documented. This study concludes that the Monte Perdido Glacier, located in the Central Pyrenees of northeastern Spain, lost significant mass […]

Projections of Greenland Ice Sheet Loss by 2100 Using CMIP6 Models for IPCC AR6

The Cryosphere, February 26 The contribution of Greenland to global sea level rise by 2100 can be as low as 20 mm, and as high as 160 mm (16 cm), depending on whether we follow low or high emissions pathways during the rest of this century; based on modeling from the new “ISMIP6” effort.  This work is based […]

Major Infrastructure Damage in Northwestern Greenland due to Accelerating Glacier Melt

Journal of Glaciology, February 17 In northwestern Greenland, rapid increases in meltwater from Qaanaaq Glacier resulted in two abnormally intense floods during the summers of 2015 and 2016.  The high discharge associated with the 2015 flood, over three times higher than normal from this glacier, came from intense melt caused by warm temperatures and strong […]

Accelerating Future Ice Loss for Svalbard Glaciers

Journal of Glaciology, February 17 Although several southern glaciers on Svalbard have retreated significantly in recent decades, the amount of ice overall has remained the same or shown very slight gains through 2018.  However, over the next forty years the average mass of Svalbard glaciers is anticipated to enter a phase of accelerating decline. This pattern […]