Deep within the ice on the summit of Mount Logan, Canada’s highest peak, are clues about the Earth’s climate and atmosphere spanning thousands of years. Scientist and high-altitude mountaineer Alison Criscitiello led the Rolex and National Geographic Perpetual Planet Mount Logan Expedition to retrieve these layers of past climates. What they find will help us understand past changing climates, and what they mean for our future. Discover more https://on.rolex.org/3Ydtxrk
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