retreating glaciers – आवारा मुसाफिर

Is climate change lighting a fuse under Iceland’s volcanoes?

October 26, 2024161 Views

Scientists are racing to find out whether the rapid retreat of glaciers could drive a surge in eruptions as magma builds under the island nation — and if so, whether the same might occur at ice-covered volcanoes around the world, putting many lives at risk. Toxic sulphurous gas, carrying the telltale reek of rotten eggs, wafted through vents in the steep walls of Iceland’s Viti crater, while carbon dioxide bubbled to the surface of the milky blue crater lake. Veils of steam wreathed the landscape of loose rock in eerie half-light. Through this forbidding terrain – “Viti” is derived from the Icelandic for “hell” – Michelle Parks, a volcanologist with the Icelandic Meteorological Office, picked her way toward the water’s edge one day last August. With a monitor strapped...

जलवायु परिवर्तन

Already shrunk by half, Swiss glaciers melting faster

AWARA MUSAFIR BUREAU

August 22, 2022247 Views

Switzerland’s 1,400 glaciers have lost more than half their total volume since the early 1930s, a new study has found, and researchers say the ice retreat is accelerating at a time of growing concerns about climate change. ETH Zurich, a respected federal polytechnic university, and the Swiss Federal Institute on Forest, Snow and Landscape Research on Monday announced the findings from a first-ever reconstruction of ice loss in Switzerland in the 20th century, based in part on an analysis of changes to the topography of glaciers since 1931. A person stands in front of the Bernina mountain group with the Pers and Morteratsch glaciers in Pontresina, Switzerland, Wednesday, August 10, 2022. (Gian Ehrenzeller/Keystone via AP) The researchers estimated that ice volumes on the glaciers ...

अमेरिकाजलवायु परिवर्तन

13 of the 19 glaciers in Alaska show substantial retreat

AWARA MUSAFIR BUREAU

August 5, 2022427 Views

New study calculates loss of glacier edges in Kenai Fjords National Park As glaciers worldwide retreat due to climate change, managers of national parks need to know what’s on the horizon to prepare for the future. A new study from the University of Washington and the National Park Service measures 38 years of change for glaciers in Kenai Fjords National Park, a stunning jewel about two hours south of Anchorage. The study, published Aug. 5 in The Journal of Glaciology, finds that 13 of the 19 glaciers show substantial retreat, four are relatively stable, and two have advanced. It also finds trends in which glacier types are disappearing fastest. The nearly 670,000-acre park hosts various glaciers: some terminate in the ocean, others in lakes or on land. Bear Glacier, shown here i...