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How Road Salt Harms the Environment
Recent research indicates that salt is accumulating in the environment and poses an emerging threat both to ecosystems and human health.
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Student Spotlight: A Shift From Education to Environmental Science and Policy
Pivoting from a career in high school science education, Sid Tulsiani hopes to engage with issues of climate change and energy.
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Coming Soon To A City Near You: E-Scooters
Shared, dockless electric scooters have taken to the streets of cities across the U.S. Is New York City ground zero for the next e-scooter invasion?
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Using the Food We Waste in New York City
New York’s food waste program is not perfect, but it is an excellent example of the steady progress that we are making to create a more sustainable city.
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Alum Launches First-Ever Shared Electric Mopeds in New York City
With his passion for energy and sustainability, Frank Reig, an MPA in Environmental Science and Policy alum, is working to make urban transit “fast, affordable and way more fun.”
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The Inaccessibility of Motherhood in New York City
Making New York City a more accessible place for mothers enhances the economic and social status of women, especially single mothers and female heads of households. This not only reduces the economic burden of childcare but also improves the job prospects of motherhood.
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Regulating the Sharing Economy: Uber and Airbnb
In regulating the sharing economy, remember that sharing is an asset for the sustainable city.
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Fighting Ticks With a Few Taps of the Phone
A new smartphone app offers hope of stemming the spread of diseases like Lyme, and providing some peace of mind in the process.
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Student Spotlight: Bringing 30 Years of Experience From the New York Sustainability World
Evelyn Reis is a student in the MPA in Environmental Science and Policy program and is returning to school after almost 30 years at the NYC Department of Sanitation.
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
