Greenland Archives - Page 3 of 8 - State of the Planet

Meltwater rivers on the greenland ice sheet. M. Tedesco/Columbia University

In Greenland, Exactly Where Meltwater Enters the Ocean Matters

In southern Greenland in summer, rivers have been streaming off the ice sheet, pouring cold fresh water into the fjords. A new study tracks where that meltwater goes—with surprising results.

by |April 25, 2016

The Damaging Effects of Black Carbon

Air pollution, both outdoors and indoors, causes millions of premature deaths each year. The deaths are mainly caused by the inhalation of particulate matter, especially black carbon. But black carbon not only has impacts on human health, it also affects visibility, harms ecosystems, reduces agricultural productivity and exacerbates global warming.

by |March 22, 2016

A Prize-Winner Explains His Work

Nicolás Young studies glaciers and ice sheets, and how they’ve changed in the past. His work earned him the Blavatnik Award for Young Scientists last fall, which came with a $30,000 prize. You can hear him talk about his research in this new video, produced by the Blavatnik Family Foundation.

by |January 28, 2016
Collecting ice cores in Greenland. Courtesy of William D'Andrea

Greenland Glaciers Retreating Faster than Any Time in Past 9,500 Years

A new study uses sediment cores to track the expansion and retreat of glaciers through time, and finds that they are retreating quickly and are more sensitive to temperature change than previously realized.

by |December 4, 2015
Nicolas Young in Greenland

Melting Ice, Suntanned Rocks and an Award-Winning Postdoc

Nicolás Young was just named a winner of a 2015 Blavatnik Award for his work measuring ice sheets in changing climates of the past. His new projects are taking glacier tracking to the next level.

by |October 13, 2015

The Changing Upernavik Waterfront

Project Background: Changing conditions in Greenland’s northwest glaciers over the last decade have led to a range of questions about water temperature and circulation patterns in the fjords where ocean water meets the glacial fronts.

by |July 14, 2014
A Greenland ice core. Photo: Christian Morel (Nature)

Greenland Ice

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.

by |April 7, 2014
Hurricane Sandy, New Jersey shore

400 ppm World, Part 2: Rising Seas Come with Rising CO2

Every indication is that thermal expansion will not dominate rates of sea-level rise in the future. As Earth’s climate marches toward equilibration with present-day CO2 levels, the climate will continue to warm. And this warming threatens the stability of a potentially much, much larger source for sea-level rise — the world’s remaining ice sheets.

by |June 12, 2013
Ice core records of CO2 and climate over the past million years, NOAA

400 ppm World, Part 1: Large Changes Still to Come

Why should society care that CO2 is now as high as 400 ppm? The reasons are multiple, but all trace back to the relationship between CO2 and temperature.

by |June 11, 2013

Upcoming Scientific Fieldwork: A Guide

Earth Institute research expeditions investigating the dynamics of the planet on all levels take place on every continent and every ocean. Most projects originate with our main research center, Lamont-Doherty Earth Observatory, and are often run in collaboration with other institutions.

by |February 27, 2013