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Riled Up is a journal of science, the environment, exploration, new technology, and related commentary.  Contributors include scientists, explorers, engineers, and others who provide perspectives and context not typically offered in general news circulation.  For interested readers, additional resources are included.

The Conservation Alliance

Once Bishop Glacier...Now Bishop Lake

Once Bishop Glacier...Now Bishop Lake


Retreating Ice, Bishop Glacier, BC 1985-2017 (credit: Landsat and the AGU)


Bishop Glacier in British Columbia is turning into a lake having lost nearly 2 miles of its ice from glacial melting. According to the American Geophysical Union (the AGU), a rapidly expanding lake has emerged where ice used to be. Using 32 years of Landsat imagery, re-photography of the glacier shows Bishop Glacier and related ice-fields. Red arrows represent the 1985 glacier's terminus; yellow the 2017 situation; purple dots designate the snow lines of three glaciers, Bishop (B), Ring (R), and Lillooet (L).

"In 2017 the Bishop Glacier 'proto-lake' is ~2.5 miles long with a glacier retreat of nearly 10,000 feet in 32 years. Ring Glacier has retreated 2600 feet from Bishop Glacier. The lake is relatively free of icebergs in 2017, suggesting a reduced calving rate in recent years."

Also, clearly visible, is the growth of shrub and forest vegetation (green) on newly exposed landscapes once covered by ice. A perspective on Canada's glaciers, particularly in British Columbia, experiencing fapid decline due to climate change, is provided in a video report. WHB

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