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When Environmental Oversight Takes a Back Seat
The government of Peru faces significant pressure to encourage growth and investment in the mining sector, but this has also put pressure on the government’s ability to properly assess environmental impacts.
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Climate Change and the Paris Agreement: What’s Next?
“Climate change is an extreme example of what happens when you do not have sustainable development. We will not address climate change unless we change the patterns of production and consumption that drove us to this situation in the first place.”
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Making Fish Farming More Sustainable
Global per capita fish consumption has almost doubled in the last 50 years. And today, about half of all the seafood we eat is produced through fish farming, aquaculture. Can it be done sustainably?
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Zeroing in on Life Around a Hydrothermal Vent
Vicki Ferrini has spent a lot of time working on mapping the ocean floor, and now she’s sailing in the South Pacific to get a closer look.
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Ruth DeFries, Jeffrey Sachs Named University Professors
Ruth DeFries and Jeffrey Sachs have been named University Professors, the highest rank Columbia University bestows on its faculty.
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Migration Mysteries of the American Robin
Ecologist Natalie Boelman is headed back to the far north to study birds—this time to the town of Slave Lake, in northern Alberta, Canada, to track the migration of American robins. She will have some schoolchildren in New York remotely helping her as she and her colleagues get to work.
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Philanthropy and Inequality
In the field of philanthropy, foundations have been confronted with how to address structural racism and various forms of systemic inequities. How can foundations play a greater role in reducing racial disparities, promoting criminal justice reform, and tackling any range of manifestations of inequality?

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


