Arctic4
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The Melting of the Greenland Ice, Seen Up Very Close
A small team of scientists ventures out onto the Greenland ice sheet to study the forces large and small that are accelerating the melting of the world’s second-largest ice mass.
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Photo Essay: Melting Greenland, Up Close
As climate warms, the Greenland ice sheet is melting, helping to fuel global sea-level rise. Follow a small team of scientists as they hike onto the sheet to investigate the forces large and small that are demolishing the ice.
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The Story of Lake Gus
For this early part of the season the goal is to tease apart a record of historic precipitation and temperature for this region using isotopes from leaf waxes collected in the lake sediments.
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Scientists Are Superheroes With Super Powers
Superheroes are identified by their unique powers and skills, allowing them to see and act in ways that inspire awe in the rest of us. Do scientists have superhero powers?
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An Icy Irony in Greenland
We awoke to messages that a towering iceberg is threatening the local waterfront settlement of Innaarsuit. There is perhaps a bit of irony in the fact that a massive looming block of ice is a potential threat to the start of our field season.
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Exploring Greenland With Wings, Boats and Drones
Snow on Ice is launching into the field with two teams of scientists this summer. The first group, an ‘advance team’ of six women, will focus on lakes where meltwater has collected on the southwestern flank of Greenland bedrock.
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Researchers Develop an Artificial Intelligence to Analyze Birdsong in a Warming Arctic
A new algorithm quickly sifts through hours of field recordings to learn how climate change influences bird migration. The A.I. could help track other wildlife as well.
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Will Loss of Arctic Sea Ice Cause More ‘Snow on Ice’ in Greenland?
Scientists are collecting lake sediment, rock, water and plant samples to tease apart linkages between Arctic sea ice, atmospheric uptake, and changes in snowfall on the Greenland Ice Sheet.
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North Atlantic Is Getting Less Salty, But It’s Too Soon to Blame Climate Change
Researchers report a sharp drop in salinity in the North Atlantic Ocean over the last decade, providing the most detailed look yet at the region’s changing ocean conditions. A continued decline could impact fish stocks and the ocean’s ability to absorb CO2.
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
