LDEO Featured News Items
Updated: 7 min 14 sec ago
About 73,000 years ago a volcano collapsed. Its force generated a wave that engulfed an island over 30 miles away. Cites research by Lamont-Doherty's Ricardo Ramalho and Gisela Winckler.
The evidence hinges on the nature of the boulders, which are composed of rock types that "exclusively crop out on the cliff faces and lower slopes of the plateau, implying a source at considerably lower elevations," the authors write. Richard Ramalho worked on the study at Lamont-Doherty.
"Most of these fairly young oceanic volcanoes—such as in the Azores and the Canary Islands and Hawaii—are incredibly high and steep, so the potential energy for a collapse to happen again is there,"said Richard Ramalho, who worked on the study at Lamont-Doherty Earth Observatory.
Geologists have concluded that 73,000 years ago, a tsunami six times taller than the wave that hit Japan in 2011 struck off the coast of West Africa, in the Cape Verde islands. Cites work by Gisela Winckler and Ricardo Ramalho.
Catastrophic wildfires in the West are burning land more violently and more frequently in recent years than at any point on record. Lamont-Doherty's Park Williams explains how this year’s big fires have corresponded with higher temperatures.
Lamont-Doherty scientists Linda Heusser and Jonathan Nichols used ancient pollen to look at Southern California's changing ecology through time and discovered a series of mega-droughts thousands of years ago.
With Hurricane Joaquin headed northward in the Atlantic, the Wall Street Journal looked at how prepared the New York City subway system is to handle another major storm. The Journal spoke with Lamont-Doherty's Adam Sobel.
Scientists warn that a similar event to the collapse of a volcano on the Cape Verde island of Fogo 73,000 years ago could pose major threats to nearby islands. Cites research by Ricardo Ramalho.
Geologists tend to notice when big rocks are out of place, like the elephant-sized chunks of basalt and limestone that had formed at sea level and somehow ended up more than six hundred feet above, on a volcanic plateau on Santiago Island. Cites research by Ricardo Ramalho.
While Hurricane Joaquin swirls off the coast, two additional sources of weather woes are affecting the East Coast, bringing heavy rainfall and a rare, prolonged wind event. Quotes Lamont's Suzana Camargo.
Lamont's Adam Sobel talks to Science about the Madden-Julian Oscillation, a powerful driver of weather in the tropics.
The New York Transit Museum looks back at how New York City's mass transit responded to a flooding crisis and recovered from Superstorm Sandy. Videos feature Lamont-Doherty's Adam Sobel, head of the Initiative on Extreme Weather and Climate.
Hurricane Joaquin is headed north, possibly towards New York City. Lamont's Adam Sobel talks about the wide range of forecasts, the likelihood of heavy rain, and how this hurricane is different from Superstorm Sandy.
Subducting oceanic plates that dive hundreds of kilometers beneath Earth’s surface carry with them cargoes of sediment and seawater. As the plate heats up the deeper it sinks, this seawater not only initiates melting in the rock above it, but can also trigger diamond formation, suggests a new study in Nature by Lamont's Yaakov Weiss.
Models present a range of possible outcomes, and right now forecasters are still weighing the odds for Hurricane Joaquin, writes Lamont-Doherty's Adam Sobel.
Droughts will likely become more frequent in the state than they have been in the past. CNBC talks to Lamont-Doherty's Park Williams about the changes.
Scientists who have been raising alarms about the endangered ice sheet of West Antarctica say they’ve identified a key glacier that could pose the single most immediate threat to the world’s coastlines — and are pushing for an urgent new effort to study it. Lamont-Doherty's Robin Bell is quoted.
Lamont's Adam Sobel, author of the book "Storm Surge" about Superstorm Sandy, comments on new research about flood risks from extreme weather in New York City.
Exercise is one of the top benefits for cyclists, but the health effects of air pollution on riders is less well-known. Scientists including Lamont-Doherty's Steven Chillrud are trying to figure out what those health effects might be to help create a safer commute.
In a video, Lamont-Doherty geophysicist Chris Small discusses his work that led to a 2015 Golden Goose Award, presented at the Library of Congress.