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Sustainability problems don’t stop at political borders; making tackling them a challenge, especially in politically and economically fraught times. That makes the role that universities play even more important: by providing a forum for the exchange of thoughts, ideas, and collaboration across different fields. 

Amid strained international institutions, an escalating climate crisis, and stalled national governments, questions arise about where the power lies to enact sustainable change. Yet, just over 20 years ago, 18 mayors banded together to identify a solution: establishing a city-governance-driven global network dedicated to empowering climate action, one that continues to expand its influence today.

SPM Director Dr. Steven Cohen explains how New York City plans to tackle its giant trash problem. Video by WSJ Pro Perfected.

New York City handles nearly 3 million tons of trash a year. And much of it ends up on the curb in loose plastic bags — before getting shipped to landfills outside of the city altogether, on barges and then trains. This system costs the city around $500 million a year. So, can the largest city in the United States modernize its waste management