rainwater harvesting
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Study Paves Way for Rainwater Harvesting in Mexico City
The city has installed more than 20,000 systems for some its neediest residents.
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Paulina Concha Larrauri: From Making Detergent to Ensuring Access to Clean Water
At the Columbia Water Center, she has worked to promote equal access to clean water, reduce risks to disadvantaged populations, and protect the environment.
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To Ease Mexico City’s Water Woes, Look up, Study Suggests
For Mexico City’s biggest businesses and its poorest neighborhoods, rainwater harvesting could help address an enormous water crisis plaguing the city, a recent Columbia Water Center study found.
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An Ancient Tool Holds Promise for Modern Water Problems
The potential effectiveness of harvesting rainwater to bolster water supply and reduce potentially polluting runoff varies greatly from place to place, even within a particular city or neighborhood. Now researchers at the Columbia Water Center have developed a tool to assess the potential of rainwater harvesting throughout the United States.
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
