Sustainability31
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Opinion: Composting Should Be Mandatory in New York City
Composting is good for the planet, and it can be profitable. New Yorkers should be required to separate compostable materials along with recycling.
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Build Back Better and American Climate Leadership
If we, once again, kick the “climate can” down the road, we should be prepared for the road to be flooded, washed away, covered in debris, and possibly surrounded by burning forests.
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Your Holiday Trash Could Be Contributing to Environmental Injustice
Here are a few things you can do to help.
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Technology Not Treaties will Reduce Global Warming
Diplomacy has influence, but only the development and implementation of new technologies will end the climate crisis.
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Leaving No One Behind? How Development Finance Can Better Reduce Poverty
Investment projects often promise to reduce poverty, but they can have the opposite effect. To improve outcomes, communities need more support and information.
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Regulating Forever Chemicals
We are an ingenious species, and when properly motivated, we can build an economy that doesn’t poison people and the planet.
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Killing ‘Evil’ Trash During This Year’s Durga Puja Celebrations
October is a time for Indian festivities starting with Durga Puja. This year our Durga celebration also included a green mission.
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Alumni Spotlight: Sharelle Pampo Copple
Copple, a recent alumna of the Sustainability Science program, shares how her experiences at Columbia have helped her make an impact on climate change research.

Congratulations to our Columbia Climate School Class of 2026 and all of our 2026 Columbia University graduates! Learn more about our May 15 Climate School Class Day celebration. 💙 #Columbia2026 #ColumbiaClimate2026

