“Hair-raising” study finds glaciers are melting at an accelerating rate
Stephen Leahy
Thursday, April 29th 2021, 1:55 pm - Water shortages in Canada and many other parts of the world are possible as glaciers rapidly recede.
The world’s glaciers are in an accelerating melt down according to the first ever study of all 220,000 glaciers. In the past two decades these mountain glaciers have lost an average of 267 billions tons of ice per year. That’s enough to submerge all of southern Ontario from Windsor to Cornwall and up to Algonquin Park under two meters of water every year.
This does not include ice loss from the Greenland and Antarctic ice sheets.
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Global glacier retreat has accelerated
An international research team including scientists from ETH Zurich has shown that almost all the world’s glaciers are becoming thinner and losing mass’ and that these changes are picking up pace. The team’s analysis is the most comprehensive and accurate of its kind to date.
Rapid glacier melt: A roaring meltwater stream connects the Morteratsch and Pers Glaciers (r.), Engadine, Switzerland. A few years ago, the glaciers were connected by ice. (Photograph: P. Rüegg / ETH Zurich)
Glaciers are a sensitive indicator of climate change – and one that can be easily observed. Regardless of altitude or latitude, glaciers have been melting at a high rate since the mid-20th century. Until now, however, the full extent of ice loss has only been partially measured and understood. Now an international research team led by ETH Zurich and the University of Toulouse has authored a comprehensive study on global glacier retreat, which was published o
A new study shows just how fast glaciers have lost thickness and mass over the past two decades.
Glaciers are a sensitive indicator of climate change and one that can be easily observed. Regardless of altitude or latitude, glaciers have been melting at a high rate since the mid-20th century.
Until now, however, the full extent of ice loss has only been partially measured and understood.
The new study on global glacier retreat in
Nature is the first to include all the world’s glaciers around 220,000 in total excluding the Greenland and Antarctic ice sheets. The study’s spatial and temporal resolution is unprecedented.