“Right now, we’re living in a world of a Pliocene atmosphere,” scientist Maureen Raymo of the Lamont-Doherty Earth Observatory tells the Yale Forum on Climate Change and the Media. “But the whole rest of the climate system — the oceans are trying to catch-up, the ice sheets are waning, and everything is trying to catch up to this Pliocene atmosphere.”
Lamont-Doherty Earth Observatory scientist Robin Bell will participate in a Google+ Hangout hosted by the White House on Tuesday, April 22 at 4:00 p.m. EDT. Bell, who will join the Hangout from New Zealand, is a polar scientist who studies sub-glacial lakes, ice sheet dynamics and tectonics in Earth’s polar regions.
Coral reefs, some of the planet’s most beautiful and biodiverse ecosystems, face many natural and anthropogenic threats. Tremendous effort has gone into protecting and rehabilitating these reefs worldwide, but the mounting problem of ocean acidification has the potential to obliterate all progress made by marine scientists, conservationists, and policy-makers thus far.
In the light of recent varied efforts to focus public attention on the risks of climate change, we asked Earth Institute scientists what they want the public to understand about the issue and how they see their roles.
If you went to Greenland, almost 80 North,
And drilled your way down … a mile, then more,
You’d find some strange layers, a story’d come forth
A record of ice ages locked in a core.
The creation of the narrow isthmus that joins North and South America changed not just the world map, but the circulation of oceans, the course of biologic evolution, and probably global climate. Scientists try to decipher the story behind its formation.
The formation of the slender land bridge that joins South America and North America was a pivotal event in earth’s history. At its narrowest along the isthmus of Panama, it changed not just the world map, but the circulation of oceans, the course of biologic evolution, and global climate. Cornelia Class, a geochemist at Columbia University’s Lamont-Doherty Earth Observatory, and Esteban Gazel, a Lamont adjunct researcher now based at Virginia Tech, are looking into a key factor: the Galápagos Plume.
Gerardo Iturrino, a longtime engineer and ocean explorer at Lamont-Doherty Earth Observatory, passed away unexpectedly on March 12. A resident of nearby Nyack, he was 51; the cause was heart attack, said his family. His incessant curiosity about the structure and origin of the Earth drove his career, the last 18 years of which he spent as a researcher at Lamont. During his time there, he participated in 16 deep-sea expeditions, most of them aboard the JOIDES Resolution, the flagship vessel of the International Ocean Discovery Program, which drills cores from ocean floors around the world.
Bess Koffman, a postdoctoral researcher at Lamont-Doherty Earth Observatory, recently traveled to New Zealand to collect dust ground-up by glaciers during the last ice age. In this photo essay, she explains how she collected the dust, what analysis looks like in the lab and what she hopes to learn.