Articles | Volume 20, issue 4
https://doi.org/10.5194/tc-20-2209-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-2209-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
23 Apr 2026
Research article |
| 23 Apr 2026
| 23 Apr 2026
Greek mountain snow cover halved in past four decades due to regional warming
Konstantis Alexopoulos
CORRESPONDING AUTHOR
Scott Polar Research Institute, University of Cambridge, Cambridge, CB2 1ER, United Kingdom
Institute of Environmental Research and Sustainable Development, National Observatory of Athens, Athens, 15236, Greece
Hellenic Mountain Observatory, Piraeus, 18531, Greece
Ian C. Willis
Scott Polar Research Institute, University of Cambridge, Cambridge, CB2 1ER, United Kingdom
Hamish D. Pritchard
British Antarctic Survey, Cambridge, CB3 0ET, United Kingdom
Giorgos Kyros
Institute of Environmental Research and Sustainable Development, National Observatory of Athens, Athens, 15236, Greece
Hellenic Mountain Observatory, Piraeus, 18531, Greece
Vassiliki Kotroni
Institute of Environmental Research and Sustainable Development, National Observatory of Athens, Athens, 15236, Greece
Konstantinos Lagouvardos
Institute of Environmental Research and Sustainable Development, National Observatory of Athens, Athens, 15236, Greece
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Short summary
Our research shows that Greece's highest mountains have lost half of their winter snow over the past four decades. Using a new model that reconstructs daily snow cover from satellite and climate data, we found a rapid and widespread decline driven mainly by rising temperatures. These changes fall outside the natural variability of the climate and highlight growing risks for water resources in Mediterranean mountain regions, due to snow droughts.
Our research shows that Greece's highest mountains have lost half of their winter snow over the...
