plastic bags
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Plastic, Paper or Cotton: Which Shopping Bag is Best?
Which bag should an environmentally responsible, health-conscious shopper use during this time of coronavirus?
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How Banning Plastic Bags Could Help New York Mitigate Climate Change
While the plastic bag ban can be good for the environment, the policies need to be carefully considered to ensure its effectiveness.
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You Asked: Do Plastic Bag Bans Work in Developing Nations?
An environmental lawyer tells us about the impact of anti-plastic bag legislation across the world.
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Banning Plastic Bags, Town by Town: a Guide
If you’re already doing your part to reduce, reuse and recycle, what more can you do? Start by thinking bigger, but not too big — one community at a time.
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What You Can Do to Fight Plastic Pollution
Plastic pollution can feel overwhelming, but here are some concrete actions we can all take to make a difference.
During COP30—the 2025 UN Climate Change Conference taking place November 10–21 in Belém, Brazil—experts from Columbia Climate School and Columbia University will be contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
