UN Summit on Climate Change
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Climate News Roundup – Week of 9/19
Denver to Barcelona: Global Cities and Greenhouse Gas Emissions, ScienceDaily ACS’ Environmental Science & Technology is publishing a new study in October identifying which cities are producing the greatest levels of greenhouse gases. Denver was number one on the list, followed by Los Angeles, Toronto, Cape Town, and Bangkok. Researchers identified high electricity and heating…
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