Earth Sciences105
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For Rio+20, a Call to Preserve Biodiversity
An estimated 9 million species of living things inhabit the Earth. But those species are disappearing at an alarming rate, and this loss of biodiversity appears to be a major driver of environmental changes that can affect the biological and chemical processes that humans rely on.
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Fresh Evidence of Life on Mars?
In a landscape shaped by wind and water, is it possible that microbial life was found on Mars in 1976? A new paper indicates life may be present, and a new mission to Mars may confirm the results.
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Under Arctic Ice: Watch the Video
The video depicts the activities of the LDEO Switchyard field team, which deploys annually and uses ski-equipped aircraft to reach a series of sample sites between the North Pole and Ellesmere Island in Canada.
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Decadal Prediction: The New Kid On the Block
Research on decadal prediction—what the climate is going to be like a decade or two from now—is still relatively new and experimental. It’s also in high demand by planners and decision makers interested in building dams and other large-scale development projects. In a new paper, IRI’s Lisa Goddard and colleagues discuss how decadal prediction research…
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Lessons From a Rock Fall
A 500-foot-high sliver of the Palisades Cliff came crashing down May 12 at 7:28 p.m., jiggling our seismometer at the Lamont-Doherty Earth Observatory a few micrometers. Weighing about 10,000 tons, the rock smashed trees along the Hudson River and covered over a hiking trail, but fortunately caused no injuries.
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Final Days in Alert
Time is flying, bringing us to our final days in Alert. We were able to recover samples from 12 stations, which is a great success and the second most successful year on record. Thanks to everyone who made it happen: Dale, Richard and Dan who went out every possible day to collect samples; Al and…
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Lucky 13 Gets Us 250,000 Years of Sediment
We have been steaming and searching for locations on the seafloor where the sediments are accumulating undisturbed. We tried without luck to take cores at several promising locations, however the cores came up less than perfect. On our thirteenth core attempt of the cruise we got lucky.
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A Walk against Cancer
Alert hosted the first northernmost cancer-fighting fundraising event “Relay for Life,” an event sponsored by the Canadian Cancer Society to celebrate cancer survivors, remember loved ones lost to cancer and fight back against all cancers. The 12-hour-walk was organized by Kristy Doyle, who lost her grandfather to cancer in 2010. Participants raised a whopping $7,580 and collectively…
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Student Research Showcase 2012
The Earth Institute, Columbia University was proud to support student research in the areas of environment and sustainable development at the annual Student Research Showcase on April 27, 2012. Student interns, research assistants and travel grant recipients, and their Faculty and Research Advisors, were honored for their research contributions that ranged in topics from biodiversity,…
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
