Since the discovery by Lamont's Göran Ekström and Meredith Nettles of glacial earthquakes caused by Greenland’s short-term ice movements, the flourishing field of cryoseismology has proved to be a powerful tool for studying a variety of glaciological phenomena, including crevasse formation, basal shear sources, iceberg calving, the rifting process in ice shelves, sea ice dynamics, precursory signs of unstable glaciers in real time, and beyond.
Evidence buried in Greenland's bedrock shows the island's massive ice sheet melted nearly completely at least once in the last 2.6 million years. The findings from a study led by Lamont's Joerg Schaefer suggest that Greenland's ice may be less stable than previously believed.
A new study from Lamont's Joerg Schaefer published in the journal Nature undercuts key assumptions about Greenland's ice sheet, suggesting it may not be as stable as previously believed.
A new study led by Lamont's Joerg Schaefer indicates that the bedrock at the bottom of Greenland may not have been covered with ice for hundreds of thousands of years during the recent geological past. It's a finding that, if true, holds huge implications for coastal cities all around the world.
As the southern continent rapidly warms, some whale populations are booming—while others are suffering from lack of ice. National Geographic talks with Lamont's Doug Martinson.
Tornado outbreaks have become more extreme in recent decades, potentially related to climate change, but not for the expected reasons, according to a new study from Lamont's Chiara Lepore.
New research by an international team, including scientists from Lamont-Doherty Earth Observatory, shows that the present thinning and retreat of Pine Island Glacier in West Antarctica is part of a climatically forced trend that was triggered around the 1940s. Even when climate forcing weakened, ice-sheet retreat continued, the scientists found.
Wildfires have burned more than 100,000 acres across seven states since late October in the southern Appalachian Mountains, typically a wet region. NewsHour talked with Lamont's Park Williams, who said conditions at the epicenter of the drought rivaled conditions typically witnessed in the American West.
Records show that “when there is fuel on the landscape and you dry it out, then fire is inevitable,” Lamont's Park Williams says. His recent research explores the role of rising global temperatures.
Volcanic crystals can act like clocks, telling researchers how soon a volcano erupted after its last pulse of magma. Lamont's Terry Plank talks with Science about "crystal clocks" and measuring the speed of rising magma.
Researchers are studying the ocean's carbon dynamics to improve predictions for sea level and temperature rise. “New technologies are allowing us access to these remote areas, and we are far less dependent on driving a ship through the sea ice," Lamont oceanographer Arnold Gordon told Nature magazine.
Millions of people in Bangladesh are still being exposed to arsenic in their drinking water, decades after the problem was identified. The Lancet talks with Lamont's Lex van Geen about his work on arsenic in drinking water in South Asia.
To predict and prepare for future climate change, scientists are striving to understand how global-scale climatic change manifests itself on regional scales and also how societies adapt—or don’t—to sometimes subtle and complex climatic changes.These issues were at the heart of the inaugural workshop of the Volcanic Impacts on Climate and Society (VICS) Working Group, convened at Lamont-Doherty Earth Observatory.
Students from nine Rockland County high schools will get hands-on experience at land use planning at collaborative workshops with Columbia University's Lamont-Doherty Earth Observatory and Rockland Conservation Service Corps.
Almost all the world’s illegal ivory comes from elephants that have been recently killed, according to a new study from Lamont's Kevin Uno.
The illegal trade in elephant ivory is being fueled almost entirely by recently killed African elephants, not by tusks leaked from old government stockpiles, as had long been suspected. That’s the conclusion of a new study from Lamont's Kevin Uno that relies on nuclear bomb tests carried out in the 1950s and ’60s to date elephant tusks.
John Batchelor talks with Lamont's Peter de Menocal about the timing of when Homo sapiens began migrating from Africa.
The federal Bureau of Ocean Energy Management is compiling and updating maps and databases about offshore sediment resources from Maine to Florida for use in post-hurricane beach replenishment. The cores from those offshore deposits are now being kept at the Lamont Core Repository.
Lamont's Carlos Becerril talks with the New York Academy of Sciences about his team's work building ocean bottom seismometers as part of the Ocean Bottom Seismograph Instrument Pool (OBSIP).
A magnitude 6.6 earthquake struck Italy on Oct. 30 following two smaller earthquakes a few days earlier and a devastating earthquake there in August. “Probably it's every hundred years you get a repeat of a series of earthquakes,” Lamont's Michael Steckler told CBS News.