American Geophysical Union Fall Meeting: December 5-9, 2011

Research presented by Earth Institute scientists at the 2011 American Geophysical Union fall conference generated a lot of attention from the media. Much of it came from a press conference held to discuss findings by Steve Goldstein from the Lamont-Doherty Earth Observatory and his colleagues on the potential for future drying up of the Dead Sea.

Oceans turned more acidic during a period of great warming some 56 million years ago, causing an extinction of bottom-dwelling marine species known as foraminifera, a scenario that may be happening again now, only much more quickly.

A half-dozen Lamont-Doherty Earth Observatory scientists were to be honored by the American Geophysical Union at its annual fall conference in San Francisco tonight.

Along the Woodlark Rift in eastern Papua New Guinea, continents are breaking apart, “like a snake opening its mouth.” Geologic processes that are still a mystery are actively stretching the crust and pushing huge masses of rock, formed under immense pressures as deep as 100 kilometers below, to the surface.

Floods, volcanoes, earthquakes–really, very little good news comes out of this sort of thing. Maybe the occasional feel-good story about, say, a child miraculously dug from the rubble days later, tired but unharmed and in good spirits, having survived on a cache of crackers and Coke. Actually, says John Mutter, an Earth Institute professor of sustainability studies, disasters can sometimes [...]

A talk Monday by Cynthia Rosenzweig of the Center for Climate Systems Research serves as a good example of how some of the hard science being discussed at the American Geophysical Union's fall meeting intersects directly with human welfare. She outlined the progress of a new global project that will help scientists produce more accurate forecasts of the effects of climate change on food supplies.

The last major drought to hit the northeastern U.S. lasted three years and shrunk New York City’s reservoirs by nearly three quarters. But as bad as that drought was, the region has seen at least three dry spells in the last 6,000 years that were far worse, says Dorothy Peteet, a climate scientist at Columbia University’s Lamont-Doherty Earth Observatory. Peteet presented new results from her Hudson River work Monday at a press conference at the AGU’s fall meeting in San Francisco.

      An international team of scientists drilling deep under the bed of the Dead Sea has found evidence that the sea may have dried up during a past warm period analogous to scenarios for climate change in coming decades. With nations in the volatile region already running short on water, the finding could be a [...]

Scientists at Columbia University’s Earth Institute will present important new studies at the Dec. 5-9 meeting of the American Geophysical Union in San Francisco, the world’s largest gathering of earth and space scientists. Press conferences on key issues will be streamed live on the web.

The annual American Geophysical Union (AGU) meeting is an all-you-can-eat buffet of the most current scientific knowledge available on the planet. Name your pleasure: space, climate change, geomagnetism, nonlinear geophysics, volcanology, biogeosciences, etc. You have to be careful to indulge in moderation over the five-day event, or risk unseemly bloating. The Columbia Water Center contributed its own tasty dishes to the feast, mostly under the hydrology section of the menu.

If climate change proceeds apace, summer sea ice in the Arctic is projected to nearly disappear by the end of this century. But a group of researchers predicts that ice will continue to collect in one small area, perhaps providing a last-ditch stand for ringed seals, polar bears and other creatures that cannot live without [...]

The 125 million people of the Caribbean/Gulf of Mexico region are highly exposed to hurricanes, floods and landslides–and it is not only because of bad weather. Increasing numbers of the poor are crowding into confined areas that are most prone to destruction–low-lying flood plains, too-steep hillsides, and the like. Robert Chen, director of the Center for International Earth [...]

All day long a flood of thousands scientists and students ebbs and flows across San Francisco’s 4th Street and Howard Avenue, coursing between the cavernous Moscone West and Moscone South convention buildings. The AGU is like a supercomputer of earth science, with human currents of data swapping information, heading from one talk to another, processing [...]

David Walker, a professor of geochemistry at Lamont-Doherty Earth Observatory, will be honored tonight by colleagues at the American Geophysical Union for decades of groundbreaking work to understand the early formation of the moon and Earth. Walker will receive the AGU’s Harry H. Hess Medal, awarded for “outstanding achievements in research of the constitution and evolution of Earth and [...]

India is running “the largest water-mining project in the world”–and it cannot be sustained much longer, Columbia Water Center researcher Shama Perveen told an audience on Monday. That is mainly because farmers, who depend heavily on irrigation water drawn from underground aquifers, are using far more water than rainfall can replenish. Perveen’s talk, “Quantifying the [...]

At AGU, you need the right tools to understand what’s going on, and to get where you need to go. Columbia researchers have been looking for the right tools to navigate another complicated place: The gap between what climate science tells us, and how a lot of the public hears that information.

Like dirt swept under the carpet, it appears that much of the human-made heat produced over the last century has been getting soaked up by the world's oceans, and sinking into deep waters.