Geochemistry Archives - State of the Planet

Understanding Earth’s Geologic History to Predict the Future

Organic geochemist Pratigya Polissar is developing new tools to look at the history of plants and ecosystems on Earth over the past 20 million years.

by |December 7, 2017

Project Maps the Chemistry of the World’s Oceans

Until recently, too little data existed about the distribution of trace elements and nutrients in the oceans to provide a global picture. In 2002, a group of scientists connected with Columbia University’s Lamont-Doherty Earth Observatory set out to fill those gaps.

by |August 10, 2016
Jeffany Acosta SSFRP 2015

Spring 2016 Undergraduate Research Assistant Opportunities

The Earth Institute will offer nine research assistant opportunities for undergraduate students during the Spring 2016 semester.

by |December 1, 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

Lamont-Doherty Dedicates New Geochemistry Facility

In late 2013, the dream of creating a uniquely powerful facility for the Lamont-Doherty Geochemistry Division became a reality upon completion of the Comer Building’s Ultra Clean Laboratory. On the afternoon of November 20th, this new laboratory was dedicated in front of an audience of Observatory Advisory Board members, donors, scientists and other members of the extended Lamont-Doherty and Columbia University communities.

by |January 10, 2014

Exploring New Zealand Climate Change in Groundwater

Alan Seltzer, a senior at Columbia University, traveled to New Zealand this past summer to work on field experiments aimed at reconstructing temperatures in the region over the last 20,000 years. His adviser, geochemist Martin Stute, is working closely with colleagues at Lamont-Doherty to understand how the southern hemisphere came out of the last ice age.

by |October 3, 2013

A Talk with Sean Solomon, Lamont-Doherty’s New Director

“The Observatory has remained a powerhouse in Earth science research and a very special place. The scientists here are true explorers—creative and fiercely independent.”

by |September 21, 2012

Science Education with Trees and Canoes

Students from New York City, Singapore and the Netherlands test their skills this weekend in the woods and on the water near Lamont-Doherty Earth Observatory in the International Student and Teacher Exchange Program.

by |May 20, 2011