Heard Island Glacier Retreat Enables Lagoon Development

5 February 2019, by

Consistent with conditions across the sub-Antarctic region, the Stephenson and Winston glaciers on Heard Island have experienced significant retreat since 1947, which has led to the formation of lagoons.

Millennial Climate Effects on a Lake Ecosystem in Southern Chile

31 January 2019, by

In a recent study published in the journal The Holocene, scientists examine the millennial changes in climate at Lake Pastahué in southern Chile. Sediment samples and historical records help reconstruct past environmental conditions at the lake ecosystem.

Roundup: Collapsing Glaciers, Invertebrates, and Resilient Mountains

28 January 2019, by

This week’s roundup features collapsing glaciers in Asia, benthic invertebrates in Antarctica, and improving mountain resiliency in the Hindu Kush.

A Survey of the UNESCO Andean Glacier Water Atlas

17 January 2019, by

The Andean Glacier and Water Atlas by UNESCO raises awareness of key issues surrounding the loss of glaciers in the Andes. It recognizes the importance of improving interactions between science and policy for successful climate change adaptation.

Video of the Week: Innovative Drone Soars High in the Peruvian Andes

16 January 2019, by

This week’s Video of the Week features newly developed drone technology that allows scientists to capture high-resolution video footage and photographs at peak elevations in the Peruvian Andes. 

Erasmo Glacier, Chile Terminus Collapse and Aquaculture

16 January 2019, by

Researchers report a 48 percent reduction in glacier area in the Cerro Erasmo and Cerro Hudson region since 1870—with half of the loss occurring since 1986.

Glacial Rivers Release Mercury into High Arctic Watersheds

15 January 2019, by

A recent study traces the source of mercury in Lake Hazen to increased flow in glacial rivers, showing that even as global mercury emissions decline, an anthropogenic driver still remains—climate change.

Powerful Glacial Lake Outburst Floods in the Himalayas

10 January 2019, by

Glacial lake outburst floods (GLOFs) are sudden, fast flowing releases of glacial lake water that move downslope as a result of dam failures. Recent research, published in Landslides, provides new understanding of GLOFs in the Himalayas by studying their trigger mechanisms and disaster impacts.

Ice Loss, Gravity, and Asian Glacier Slowdown

8 January 2019, by

Mountain glaciers have a simple motivation for their downhill progression—gravity. A recent international study found that glaciers in high mountain Asia are slowing down due to ice thinning.

Historical Data on Black Carbon and Melting Glaciers in Tibet

3 January 2019, by

Black carbon warms the atmosphere and can lead to increased melting when concentrated on a glacier. A recent study traces black carbon transport from the Gulf War Kuwait oil fires to the atmosphere and ice core at Muztagh Ata Mountain on the northern Tibetan plateau.

Roundup: 1,400 Year-old Toy Arrow, NASA’s Ice Satellite, and Svalbard Glaciers

31 December 2018, by

In this week’s Roundup, read about a toy arrow revealed by a melting glacier, NASA’s newest ice-monitoring satellite launch, and new research on resilient glaciers in Svalbard.

Roundup: Hot Rocks, Dissolved Organic Matter, and Dry-Snow Densification

24 December 2018, by

In this week’s Roundup, read about the elevated geothermal heat flow in Antarctica, dissolved organic matter in a fjord in Greenland, and how snow turns into ice in Antarctica.