Vikings
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Vikings Abandoned Greenland Centuries Ago in Face of Rising Seas, Says New Study
Counterintuitively, seas were rising around Greenland as it went through a cold period centuries ago. This helped drive out Viking colonists, says new research.
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Humans Reached Remote North Atlantic Islands Centuries Earlier Than Thought
It was long accepted that the Vikings were the first people to settle the Faroe Islands, around 850 A.D. until traces of earlier occupation were announced in 2013. But not everyone was convinced. New probes of lake sediments clinch the case that others were there first.

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
