invasive species
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How Climate Change Drives the Spread of Invasive Plants
Abetted by warmer climes, non-native species can take root and wreak havoc in new environments. Is there anything we can do about them?
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Return of the Natives
I can’t help but wish I could return to an age when North America was new to the European settlers, and they could observe this continent in its fully evolved state, with flora and fauna living nearly undisturbed by Homo sapiens.
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What is Biodiversity and How Does Climate Change Affect It?
In general, the more species that live in an area, the healthier that ecosystem is—and the better off we humans are.
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The Catskill Watershed: a Story of Sacrifice and Cooperation
It has become so easy for us here in NYC to turn on the tap without realizing the hardship, unimaginable sacrifices and money that have allowed us this incredible resource at the mere flick of a finger. We returned to the downstream end of the aqueducts with a newfound appreciation of the hard work we…
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Kudzu Harms Air, Not Just Ecosystems, Says Study
Invasive Vine Said to Add Ozone in Southeastern U.S.
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
