Mont Blanc, the ‘roof of Europe’, loses more than a metre of height in a year
Summary
Mont Blanc, the tallest mountain in Europe, has lost more than one meter in height over the last year, now measuring 4,807.47 meters. Surveyors used satellite technology and drones to track changes caused mainly by shifts in snow and ice on the summit.Key Facts
- Mont Blanc is currently 4,807.47 meters tall, down 1.29 meters from 2025.
- The rocky part of the mountain is about 4,792 meters tall, but snow and ice on top make the height change year to year.
- The mountain’s summit height has decreased by 3.43 meters since 2007, when it was 4,810.90 meters tall.
- Surveyors from French organizations used precise satellite tools and drones to measure the summit.
- Changes in summit height do not always mean the total amount of ice on the mountain has changed.
- Western Europe experienced its hottest summer on record recently, speeding up ice melt in the Alps.
- Swiss scientists reported losing one-fifth of Switzerland’s ice over the past five years due to melting.
- The melting glacier near Mont Blanc is moving up, turning some glacier areas into streams.
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