State of the Cryosphere Report
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Closing Out Climate Week: Why 2 Degrees is Too High for the Cryosphere
Experts say that snow and ice loss will create conditions beyond the limits of adaptation for billions of people if climate warming reaches 2 degrees Celsius.
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Melting Ice and Rising Sea Levels: Why 2 Degrees Celsius Is Too High
At a United Nations Framework Convention on Climate Change side event in early June, representatives from several countries discussed the urgent need to address global loss of water and sea-level rise.
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Report Released at COP27 Gives a ‘Terminal Diagnosis’ for Summer Sea Ice
The COP27 State of the Cryosphere 2022 Report has stated that summer sea ice will melt completely, likely before 2050. This outcome is deemed “inevitable.”
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
