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Sixty years of observations and future projections of nine declining North American glaciers

Edward G. Josberger et al · Nature Portfolio · 2026

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Abstract Warming climate has greatly affected the stability of the world’s glaciers. In 1957, as part of the International Geophysical Year, nine North American glaciers were surveyed in great detail so that they could serve as future benchmarks. Since their initial survey, these nine benchmark glaciers have drastically decreased in volume and areal extent. This is a direct result of global warming. However, the exact amount of their change has never been fully documented and predictions of their lifespans in the wake of continued temperature increase has never been projected. In this study, we utilized advanced satellite techniques to quantify changes in the nine glaciers as well as assessed their long-term survivability. The methodology successfully used in this study can be applied to glaciers throughout the world, which would provide a cost-effective evaluation of past, present, and future glacial change at localized scales. We show that since 1957, the glaciers have lost 1.4 metric gigatons (Gt) of freshwater and have shrunk on average by 33%. Additionally, utilizing future temperature projections and cumulatively integrating temperature-driven volume changes over time, we show that only 3 of the 9 glaciers will still be in existence by 2100. These results paint a grim picture for the future generations observing glaciers in North America.

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APA 7

al, E. G. J. E. (2026). Sixty years of observations and future projections of nine declining North American glaciers. https://doi.org/10.1038/s41598-026-41235-6

MLA

al, Edward G. Josberger et. "Sixty years of observations and future projections of nine declining North American glaciers." 2026. https://doi.org/10.1038/s41598-026-41235-6.

Chicago

al, Edward G. Josberger et. 2026. "Sixty years of observations and future projections of nine declining North American glaciers.". https://doi.org/10.1038/s41598-026-41235-6.

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al, E. G. J. E. 2026, Sixty years of observations and future projections of nine declining North American glaciers, Nature Portfolio, available at: https://doi.org/10.1038/s41598-026-41235-6 [Accessed 1 Jul. 2026].

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Título
Sixty years of observations and future projections of nine declining North American glaciers
Autor / colaboradores
Edward G. Josberger et al
Editorial
Nature Portfolio
Año de publicación
2026
ISSN
2045-2322
ISSN
2045-2322
Idioma
eng
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