plastic bag ban
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Protecting Our Planet: 5 Strategies for Reducing Plastic Waste
Think global, fight local: In honor of Earth Day, here are some tips to reduce your plastic footprint.
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Don’t Let the Plastics Industry Exploit Coronavirus to Roll Back Progress
A student urges that we stand up to corporate deceit, reinstate plastic-bag bans, and encourage businesses to allow reusables again while adhering to safety protocols.
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The Sharing Economy Comes to Congress While Plastic Bags Leave New York
Both clothing rental and plastic bag bans are small steps on the long road to sustainable cities and a circular, less environmentally destructive economy.
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