Study: Cascade Glaciers May Be Gone by Mid-Century


A paper published online today by Nature reports the results of a massive data-crunching study of the world’s glaciers based on 20 years of satellite observations. The data covers all of the world’s 211,000+ glaciers except the main ice sheets covering Greenland and Antarctica. The bottom line is that they are melting very fast indeed.

Of particular local interest, the report’s authors suggest that the glaciers in the Washington and Oregon Cascades may disappear completely over the next 30 years. The same is true of Montana’s Glacier National Park, and many glaciers in British Columbia and Southeastern Alaska.

Globally, about a billion people depend to some degree on glacial meltwater. Rainfall and snowmelt are much more variable sources, and glaciers have served as giant buffers, keeping water in the system regardless of annual rainfall and snowpack. The loss of glaciers also un-weights fault lines, and can lead to more severe earthquakes. Our snow-cone mountains will still look snowy in winter, but plenty of people alive today will live to see Rainier, Adams, Baker, Hood, and, of course, Glacier Peak lose their whiteness completely during the summer, the way forcefully de-glaciered St. Helen’s does now. The consequences for agricultural and other water uses are likely to be substantial. Wired magazine has published a readable summary of the fairly dense Nature story.

Tom Corddry
Tom Corddry
Tom is a writer and aspiring flâneur who today provides creative services to mostly technology-centered clients. He led the Encarta team at Microsoft and, long ago, put KZAM radio on the air.


Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Comments Policy

Please be respectful. No personal attacks. Your comment should add something to the topic discussion or it will not be published. All comments are reviewed before being published. Comments are the opinions of their contributors and not those of Post alley or its editors.