compost
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NYC’s Composting Rates Are Low. A Sustainability Expert Thinks AI Will Offer a Solution. Eventually.
Steve Cohen, director of Columbia’s M.S. in Sustainability Management program, discusses the present and future of food waste programs in NYC.
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Introducing the ‘Food Pod for Humanity’ Podcast
The Food Pod for Humanity podcast explores topics at the intersection of food systems and climate change.
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Food Waste and the Complexity of New York City’s Garbage
The goal of reusing food waste is worthwhile, though NYC’s new mandatory residential food recycling has some design problems.
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New York City’s Food Waste and the Circular Economy
Food waste provides an opportunity for New York City to place itself on the cutting edge of waste recycling.
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Composting—Turning Garbage into Black Gold
Forty percent of our food is wasted, but through composting, food waste can be turned into black gold—so called because compost, the mixture of decayed organic matter, is valuable as a nutrient-rich soil additive. In the United States, however, less than 3 percent of food waste is composted.

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.
