architecture2
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Ideas for the Sustainable City: Green Buildings
On March 23, the Environmental Protection Agency released a list of the 40 cities with the highest percentage of energy-efficient buildings. While Los Angeles, Washington and San Francisco made the top three, NYC came in at number ten. When we think about carbon emissions, we often think of cars, trucks, factories, and power plants. We think…
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Cities at a Turning Point
Scientists warn that many cities around the world may soon face big climate-change challenges: rising seas; shrinking water supplies; killer summer heat waves; rises in water-borne diseases as temperatures go up and sewers are swamped. No one is predicting that, say, London or Miami will simply drop beneath the waves–but these and other cities will probably have to be redesigned if…
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