Lamont-Doherty Earth Observatory

Falling sulfur dioxide emissions in the United States are expected to substantially increase rainfall in Africa’s semi-arid Sahel, while bringing slightly more rain to much of the U.S., according to a new study. (Francesco Fiondella/International Research Institute for Climate and Society

Reduced U.S. Air Pollution Will Boost Rainfall in Africa’s Sahel, Says Study

If U.S. sulfur dioxide emissions are cut to zero by 2100, as some researchers have projected they will be, rainfall over Africa’s Sahel region could increase up to 10 percent from 2000 levels, computer simulations suggest.

by |May 22, 2017
The "Ice Pod" instrument array deployed off the side of a military cargo plane over Antarctica. Photo: Winnie Chu/Lamont-Doherty Earth Observatory

Lamont Scientists Are Focus of NY Times Multimedia Series

This past winter, reporters from the New York Times went along for the ride with scientists from the Lamont-Doherty Earth Observatory as they flew their mission of discovery over Antarctica.

by |May 22, 2017
Vikings were here, but thousands of years earlier Stone Age people were, too. D'Andrea's team hikes down to core a small pond next to the remnants of these people's sea-side dwellings.

Coring Arctic Lakes to Study Vikings

Billy D’Andrea, a Lamont-Doherty Earth Observatory paleoclimatologist and Center for Climate and Life Fellow, is investigating the relationship between environmental change and characteristics of early settlements in Norway’s Lofoten Islands.

by |May 22, 2017
A NOAA water level monitoring station with an acoustic sensor on Dauphin Island, Alabama. Such tide gauges along the U.S. coast give scientists a baseline of sea level changes dating at least to the 19th century. Photo: NOAA/courtesy Morgan McHugh

Researchers Model Differences in East Coast Sea Level Rise

For years, scientists have been warning of a so-called “hot spot” of accelerated sea-level rise along the northeastern U.S. coast. But accurately modeling this acceleration as well as variations in sea-level rise from one region to another has proven challenging. Now new research offers the first comprehensive model for understanding differences in sea level rise along North America’s East Coast.

by |May 18, 2017
Sheean T Haley speaking

Why I Decided to Stand Up for Climate Science

A young researcher explains why she is taking to advocacy for science.

by |May 10, 2017
Scientists have discovered that seasonally flowing streams fringe much of Antarctica’s ice. Each red ‘X’ represents a separate drainage. Up to now, such features were thought to exist mainly on the far northerly Antarctic Peninsula (upper left). Their widespread presence signals that the ice may be more vulnerable to melting than previously thought. (Adapted from Kingslake et al., Nature 2017)

Water Is Streaming Across Antarctica

In the first such continent-wide survey, scientists have found extensive drainages of meltwater flowing over parts of Antarctica’s ice during the brief summer. Many of the newly mapped drainages are not new, but the fact they exist at all is significant; they appear to proliferate with small upswings in temperature, so warming projected for this century could quickly magnify their influence on sea level.

by |April 19, 2017
Vetlesen_medal-3

Webcast Today: Rich and Poor, and the Essence of El Niño

How does El Niño work, and how does it affect our climate, food supplies and water availability? The two men whose scientific work has been key to solving these puzzles will be honored Wednesday with the Vetlesen Prize, marking a major achievement in Earth sciences. And this afternoon, they’ll have something to say about it in a webcast lecture.

by |April 18, 2017
sat image water vapor NOAA 20

Our Economy Depends on Earth Observation and Scientific Research

If we are to continue to grow our economy without destroying the planet’s basic systems that sustain human life, we need to learn a great deal more about our planet and the impact of human activities on natural systems.

by |April 17, 2017
Polissar snip

Pratigya Polissar Sees Landscapes Changing Through a Microscope

The word fossils typically conjures images of T-Rexes and trilobites. Pratigya Polissar thinks micro: A paleoclimatologist, he digs into old sediments and studies molecular fossils—the microscopic remains of plants and animals that can tell us a lot about what was living in a particular time period.

by |April 17, 2017
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Kirsty Tinto: Mapping on and under Antarctica’s Ice

Kirsty Tinto flies aboard a specially equipped airplane in very cold places to study ice sheets and ice shelves. She’s an associate research scientist in the polar geophysics group at Lamont-Doherty Earth Observatory.

by |April 3, 2017