nutrient cycling
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With Climate, Fertilizing Oceans Could be Zero-Sum Game
In Pacific, Added Iron May Not Pull Carbon From Air as Thought
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In Gulf of Mexico, Microbes Thrive Above Natural Oil Seeps
New insight into how plankton and oil interact
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Has the Green Revolution Really Succeeded?
Over the past 50 years, human population has more than doubled, but cereal-crop production has grown even faster. Unfortunately, newer high-yield crops are less nutritious.
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Study Reveals Microbes’ Hidden Role in Fertilizing Oceans
Surprisingly little has been known about how phosphorous, an essential nutrient, cycles through the oceans. A new study has broken through some of this mystery, by showing the hidden role that the oceans’ tiniest creatures play.
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How Green is Local Food?
Local food proponents often claim that food grown close to home helps prevent global warming because it requires less fossil fuels to transport, generating fewer greenhouse gas emissions than conventionally produced food. But just how green is local food?
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Amazon Outflow is Found to Power Ocean Capture of Carbon Dioxide
River nourishes unexpected plant life, trapping greenhouse gas
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