hydroflurocarbons
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Expanding Global Cold Chains: Effective Adaptation, or Dangerous Contribution to Climate Change?
Cooling technologies, including refrigerators and industrial chillers, can prevent food waste and are increasingly necessary in our warming climate. Are there ways to minimize their climate impacts?
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Greener Ways to Keep Cool During a Heat Wave
The world is warming and our air conditioners are making it worse. Here are some less energy-intensive ways to survive the rising heat.
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
