paleoclimatology Archives - State of the Planet

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

Indonesian Corals Shed Light on Climate System

A new coral salinity record shows that the location of the most significant hydroclimatic feature in the Southern Hemisphere, the South Pacific Convergence Zone, influences a major Pacific Ocean current.

by |February 9, 2017
Maureen Raymo

Maureen Raymo Elected to National Academy of Sciences

Maureen Raymo, a marine geologist at Lamont-Doherty Earth Observatory whose name is connected with key theories about how ice ages wax and wane and how sea levels change, has been elected to the National Academy of Sciences, one of the highest honors awarded to scientists in the United States.

by |May 3, 2016
Jeroen vanderLubbe examines the first cores brought up by the team aboard the Joides Resolution.

6 Million Years of Sediment, Studded with Tiny Fossils

Sidney Hemming and her team have started examining their first sediment core from off southern Africa. It appears to contain about 6 million years of history.

by |February 12, 2016

Uncovering the Stories of Southern Africa’s Climate Past

Sidney Hemming is preparing to spend two months at sea studying global ocean circulation and southern Africa’s climate variability over the past 5 million years.

by |January 27, 2016
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