carbon utilization
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The Greening of China
China became the world’s largest carbon polluter in 2006, surpassing the U.S. But it is also rapidly going green through cutting coal use, investing heavily in renewable energy and launching the world’s largest carbon trading system.
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10 Reasons to Take Direct Air Capture Seriously
Though still requiring more research and development, direct air capture, a technology that extracts CO2 from ambient air, offers reason for optimism. It is economically viable in several areas and can permit negative emissions to eventually stabilize atmospheric concentrations. While current support for the pioneers in this industry comes from private and philanthropic investment, here…

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
