Water40
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Unsettled by Climate Change
Climate change already laps at the edges of some communities, disrupting local economies and habitat, and forcing resettlement. But a new study notes that any efforts to offset the effects of shifting climate could lead to even more displacement and disruption for many people, particularly the poor.
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7 Billion on 10/31: The Numbers Can Be Scary
You can now watch the tape of “The World at 7 Billion: Sustaining Our Future,” the Earth Institute’s panel discussion held at Columbia Oct. 17 and featuring the presentation by Professor Joel E. Cohen on the “good and bad news” behind the growing world population.
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China’s Decade Plan for Water
For the first time, China’s No. 1 central document outlining the government’s priorities for the coming year focuses on the construction of water resources acknowledging its importance as a “strategic resource” and its necessity to the economy.
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Open House: Earth Institute Graduate Programs
The Environmental and Sustainable Development Programs Open House is a wonderful opportunity for you to find out more about Columbia’s cutting-edge graduate degrees in sustainable development and environmental studies. We invite you to come explore our diverse offering of programs, have your application questions answered, and meet with current Columbia students and faculty. Attend the…
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Open House: Earth Institute Undergraduate Programs
Whether you are interested in global poverty alleviation, sustainable development, sustainability management, ecology or environmental policy, Columbia University has a program for you. Attend the Environmental and Sustainable Development Programs Open House from 4-7 p.m. on Monday, Oct. 24, Low Memorial Library, Columbia University (116th & Broadway) to learn more.
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Sprouting Trees From the Underground Forest — A Simple Way to Fight Desertification and Climate Change
Beginning in Niger in the 1980s, Tony Rinaudo, an African aid missionary, began working with farmers to develop a new approach to reforesting degraded landscape. The practice he developed involved selective pruning of shrub shoots to a main stem, which was then pruned of its lower leaves and branches. Within a few years, new woodlands…
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The 7 Billion Challenge
The rapid rise in the world’s population to 7 billion — from 6 billion a dozen years ago — poses enormous challenges. In this video, Earth Institute Director Jeffrey D. Sachs talks about the stresses our population already puts on the planet, and the mission of the institute to promote sustainable development.
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Join a Conversation About 7 Billion People
The world’s population will reach 7 billion this year, and the UN estimates continued growth, primarily in less-developed regions. What will this steep population growth mean for our environmental, economic and social systems? Join the conversation on Oct. 17.
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What are the Keystone XL Pipeline Risks to Water Resources?
One of the issues most passionately discussed now in the media and blogosphere is the KeystoneXL Pipeline proposal, to allow Canadian oil and gas company TransCanada to build a pipeline to transfer tar sands oil from Alberta to Texas. So what are the arguments?
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
