Steven Cohen2
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What Is Decarbonization, and How Do We Make It Happen?
To keep the planet from warming more than 1.5°C above pre-industrial levels, economies must rapidly decarbonize. What will this involve?
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Are Wind and Solar Power Really More Expensive and Less Reliable?
Recent technological advancements and an evolving market challenge these old myths.

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
