
In the hottest summer since 1991 the glacier lost 9 hectares in a single year and retreated by 23 meters on average on frontal signs.
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The Participatory Glaciological Campaign on the Marmolada annually monitors the state of health of the main glacier in the Dolomites.
A drastic premonition. The Marmolada would not be more than 10 years old. In the hottest summer at altitude since 1991, the deviation from the averages was more than 3° C. On the ARPAV Punta Rocca station, at 3250 meters above sea level, only on three days was a negative minimum observed (-0.6 C absolute value) and there was no day with a negative average temperature or even snowfall at the highest altitudes.
The data collected
The eighth edition of the Participatory Glaciological Campaign on the Marmolada promoted by the Geography Museum of the University of Padua concluded with these results, which saw the collaboration of researchers from the University of Padua, ARPAV, the Italian Glaciological Foundation, students and citizen volunteers from four different regions. The 2026 campaign made it possible to collect updated data, which is fundamental for continuing to monitor what remains of the main glacier in the Dolomites and better understanding the impact of climate change on a local scale. The data collected confirm the continuous retreat of the main glacier, with an average retreat on the frontal signals of 23 m (last year there were 8), confirming a record year from the point of view of summer temperatures, which even surpassed the very hot 2003.
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Record glacier loss
"The data collected this year aggravate the trend already evident in recent decades, marking a new negative record of reduction in surface area of the glacier, which in one year lost 9 hectares, dropping to a total of 83 hectares compared to 92 last year, now far from the 100 hectares of 2023 - comments Professor Mauro Varotto, professor of the Department of Historical, Geographical and Antiquity Sciences and scientific director of the participatory glaciological campaign -. It is a record loss that we had only recorded in 2022, with the tragic collapse of the glacier. If summers like the one just passed are repeated, the glacier could only have about ten years of life." "Overall, the frontal measurements record a retreat that has tripled compared to last year (-23 m, on average) - underlines Giovanni Benetton, responsible for the measurements for the Italian Glaciological Foundation this year - and the most dramatic situation is that of the western front where in a signal we have recorded a retreat of 120 meters in two years, with a height of the front now over 2900 metres. The glacier is completely devoid of residual snow and the only one that remains is now that under the tarpaulins geotextiles".
In-depth analysis
Hot, the Marmolada glacier retreats 200 meters in 2 weeks

An Atlantic disturbance will put an end to the great summer heat in Italy between tomorrow and Friday, bringing strong storms and a temperature drop of up to 8 degrees across the country.

An incisive Atlantic disturbance is ready to put an end to the long torrid summer in Italy, bringing a temperature drop of up to 8 °C, intense rain and thunderstorms fueled by overheated seas.

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The summer of 2026 was the hottest in Italy since 1950, with a national average temperature of 24.3°C two meters above the ground, exceeding the previous record of the summer of 2003 of 23.6°C, according to the Cnr-Ibe analysis of the Ecmwf's Era5 Land data.

After a long period of anomalous heat, the first well-structured Atlantic disturbance arrives which will bring a temperature drop of 6-8°C across much of Italy from Wednesday, with locally intense thunderstorms and possible hailstorms, mitigated however by the high surface temperatures of the seas around the Peninsula.