public transportation
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Let’s Build a Train From Brooklyn to Queens and Someday to the Bronx
Let’s build that interborough train line and once it’s up and running, build a second phase to the Bronx.
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Congestion Pricing is Slowly Coming to New York City
London, Singapore, and Stockholm have all managed to do something that New York City has been unable to do; enact and implement congestion pricing in its central business district.
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Why Fines and Jail Time Won’t Change the Behavior of Ghana’s Minibus Drivers
Research shows that a range of structural factors, including exploitative labor relations and police corruption, compel and solicit dangerous driving behavior.
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How Urban Transport is Changing in the Age of COVID-19
The pandemic is changing how we get around. Emergency response measures and experiments around the world offer lessons for sustainable mobility and resilience strategies going forward.
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Workshop Outlines Challenges and Opportunities for Electrifying NYC Buses
The Metropolitan Transit Authority aims to have a fully electric municipal bus fleet by 2040.
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New York’s Overly Political Approach to Mass Transit
The time for a comprehensive fix for this region’s mass transit is long overdue.
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The Mass Transit Man
Thomas Abdallah, adjunct professor at Columbia University, is working to make the NYC subway system more sustainable.
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New York City’s Subways Need Congestion Pricing Now
Charging drivers more could provide much-needed funding for public transit, while reducing traffic and making Manhattan a better place to live and work.
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Mass Transit in the Sustainable City
An effective transportation system is to the sustainable city what a well-functioning circulatory system is to a healthy human being. New York City has developed along the path of its subway system.
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
