alarming
Athabasca glacier losing ice at an alarming rate
Athabasca Glacier, the largest and most visited ice sheet forming the Columbia Icefield in Jasper National Park, is melting at such a fast rate that scientists fear it may be gone within the next generation. According to a recent report from a Parks Canada manager, Athabasca Glacier is losing more than 5 metres of ice on an annual basis. It has long been a favorite destination for tourists who board oversized snow coaches in order to see the historic glacier up close.
The glacier has been gradually decreasing in size over the past century and a half, despite the fact that it receives an average of seven metres of new snowfall every year. Jasper National Park officials say that they are becoming alarmed at the fast rate of ice lost on the Glacier, whose very existence is now being threatened. There are markers that were placed on the Glacier more than a century ago which indicate that the toe of Athabasca has receded by at least 1.5 kilometres, revealing a landscape filled with rock and gravel rather than ice and snow cover.
Measurements of the Columbia Icefield taken in 1994 estimated that it covered approximately 325 square kilometres. But now that measurement has shrunk to only 220 square kilometres, which proves to Park officials that not only is Athabasca Glacier receding in size, it is also becoming much more shallow. Even though winter snowfall has remained consistent, higher summer temperatures and a longer autumn season is making the snow disappear more rapidly than ever before. The U.S. National Climate Assessment recently reported that climate changes are causing glaciers throughout Alaska and British Columbia to shrink substantially and that they expect this rapid deterioration to be an ongoing trend. Shrinking glaciers will affect sea levels, ocean fisheries and hydro-power production.
Athabasca Glacier Losing Ice At Alarming Rate | eCanadaNow

Athabasca glacier losing ice at an alarming rate
Athabasca Glacier, the largest and most visited ice sheet forming the Columbia Icefield in Jasper National Park, is melting at such a fast rate that scientists fear it may be gone within the next generation. According to a recent report from a Parks Canada manager, Athabasca Glacier is losing more than 5 metres of ice on an annual basis. It has long been a favorite destination for tourists who board oversized snow coaches in order to see the historic glacier up close.
The glacier has been gradually decreasing in size over the past century and a half, despite the fact that it receives an average of seven metres of new snowfall every year. Jasper National Park officials say that they are becoming alarmed at the fast rate of ice lost on the Glacier, whose very existence is now being threatened. There are markers that were placed on the Glacier more than a century ago which indicate that the toe of Athabasca has receded by at least 1.5 kilometres, revealing a landscape filled with rock and gravel rather than ice and snow cover.
Measurements of the Columbia Icefield taken in 1994 estimated that it covered approximately 325 square kilometres. But now that measurement has shrunk to only 220 square kilometres, which proves to Park officials that not only is Athabasca Glacier receding in size, it is also becoming much more shallow. Even though winter snowfall has remained consistent, higher summer temperatures and a longer autumn season is making the snow disappear more rapidly than ever before. The U.S. National Climate Assessment recently reported that climate changes are causing glaciers throughout Alaska and British Columbia to shrink substantially and that they expect this rapid deterioration to be an ongoing trend. Shrinking glaciers will affect sea levels, ocean fisheries and hydro-power production.
Athabasca Glacier Losing Ice At Alarming Rate | eCanadaNow