General8
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Year in Review: Our Top Stories of 2023
In case you missed it: Check out this past year’s top stories, videos, research highlights and more.
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Reflections on COP28
A look back at the annual global climate conference.
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Why the COP28 Loss and Damage Decision Is Historic
Never mind the critics: Here’s what went right at COP this year.
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Climate School Announces Two New Appointments
Meet Melissa Lott and Catherine McKenna, two new members of the Columbia Climate School
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Columbia Climate School Releases ‘Carbon Markets, Nature, Rights and Climate Justice’ Roundtable Report ahead of COP28
Lessons from early nature-based markets have shown significant risks if the needs of frontline actors are not considered in every step of design and implementation.
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Regulating Technological Complexity
It is in the public interest to regulate new and emerging technologies to reduce the harm they create. Broad policies can be set by law, but the detailed rules must be left to experts in administrative agencies.
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Five Ways to Host a More Sustainable Thanksgiving
Food systems researcher Jessica Fanzo offers tips for a more environmentally friendly holiday.
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Science for the Planet: Why Marshes Must Be Preserved
While collecting sediment cores from a New York City coastal marsh, botanist and climatologist Dorothy Peteet explains how such ecosystems store massive amounts of carbon, but are under threat from sea-level rise.
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Frontline Heroes: Predicting Climate Extremes in Africa
Advanced weather-forecasting tools and techniques, like those developed at Columbia Climate School’s International Research Institute for Climate and Society (IRI), can help key stakeholders in Africa prepare for the worst.

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
