Articles | Volume 18, issue 9
https://doi.org/10.5194/tc-18-4517-2024
https://doi.org/10.5194/tc-18-4517-2024
Research article
 | 
27 Sep 2024
Research article |  | 27 Sep 2024

Unprecedented 21st century glacier loss on Mt. Hood, Oregon, USA

Nicolas Bakken-French, Stephen J. Boyer, B. Clay Southworth, Megan Thayne, Dylan H. Rood, and Anders E. Carlson

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Short summary
Repeat photography, field mapping, and remote sensing find that glaciers on Mt. Hood, Oregon, have lost about 25 % of their area in the first 2 decades of the 21st century and 17 % of their area in the last 7–8 years. The 21st century recession rate is more than 3 times faster than the 20th century average and 1.9 times faster than the fastest period of retreat within the 20th century. This unprecedented retreat corresponds to regional summer warming of 1.7–1.8°C relative to the early 1900s.