Climate225
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Ice cores…finally
Today I got another chance to go out with team CASIMBO to drill ice-cores. The weather was beautiful with no wind, a few clouds, bright sunshine and a balmy temperature of about 5 degrees F. When I first saw sea ice near Alert a few years ago, I was very surprised. It wasn’t anything like…
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Drilling Ancient Mud from Seafloor No Easy Task
Yesterday we left our first study region with new samples from the seafloor and a healthy respect for the ocean currents that can erode sediment deep in the ocean. The seafloor we surveyed was heavily eroded and we had to look carefully before finding sites that were promising enough to try sampling. Even then we…
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Our Best Flight Yet
Evidence of the retreat of glaciers since the last glacial maximum (check), flying over sites of ancient Inuit, Norse and present day settlements (check), and a personal recollection of my own past in this location (check).
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Emissions from the Cement Industry
A single industry accounts for around 5 percent of global carbon dioxide (CO2) emissions. It produces a material so ubiquitous it is nearly invisible: cement. It is the primary ingredient in concrete, which in turn forms the foundations and structures of the buildings we live and work in, and the roads and bridges we drive…
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Ph.D. Candidate Studies Natural Carbon Storage in Oman
Amelia Paukert considers herself “environmentally inclined” because of her early exposure to nature and horseback riding in her native Napa Valley, California. Her fascination with the water cycle helped spark her passion for environmental science.
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Albany to Alert
On the way from Kangerlussuaq to Thule we fly along the coast of Greenland, over Baffin Bay, where the Arctic starts to show its icy face. For me, Greenland is fascinating for its mild temperatures, diverse wildlife in the south and breathtaking frozen state in the north. I also like the Danish pastries served in…
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Through the Looking Glass: Peering Through the Bottom of the Ocean
Alice stepped through the mirror to see the world beyond, and we peer through the bottom of the ocean to see what is below. Short pulses of sound from the ship are focused on the seafloor, and we listen to the echo and reverberations that return.
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Calmer Seas Ahead
After a short break due to weather and a bit of fun with Styrofoam cups, we are back in the lab sampling phytoplankton in the Bering Sea. We are using a specialized instrument to determine how well these small plant-like creatures are able to photosynthesize in the ocean, and we continue to learn fun facts…
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Climate News Roundup: Week of April 30th
Scientists race to save world’s rice bowl from climate change; Study: climate change causes plants to flower earlier; Panetta warms climate change having ‘dramatic impact’ on national security; Climate change is real and here: what to do now to protect your building
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
