PCBs
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Pesticides and Industrial Pollutants Found in Snow Atop Arctic Glaciers
The long journey of these compounds — likely originating in the United States and Eurasia — points to the near-global reach of industrial and agricultural pollution.
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GE Agrees to Phase 2 of Hudson River Cleanup
Today the General Electric Company (GE) notified the Environmental Protection Agency (EPA) that it will conduct Phase 2 of the Hudson River cleanup operation and pay for it.
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
