Analysis· The Conversation

300 glaciers have disappeared from the American West since the mid-20th century – the survivors have a few things in common

By Andrew Fountain, Professor of Geography, Portland State University, The Conversation · October 12, 2026

Image: The Conversation

A new study compared the glaciers in the Lower 48 states today against historical data from the mid-20th century. The results show the region’s vulnerabilities as temperatures rise.

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