Xinning Zhang, and her laboratory, studies the role that wetlands play in generating methane, a significant greenhouse gas.
News - 2019 - 2019
Professor John A. Higgins
Title: Associate Professor of Geosciences
Professor John Higgins' primary research interest is the evolution of the carbon cycle and the global climate system over Earth history. One focus has been on processes that control the chemical composition of seawater, and how those processes have changed on geologic timescales. Another is how on the chemistry of carbonate sediments is affected by processes that occur post-deposition. These include early diagenetic recrystallization, dolomitization and hydrothermal alteration. The tools Prof. Higgins has employed to study these include numerical models of chemical and isotopic biogeochemical cycles, as well as analysis of traditional stable isotopes of oxygen and carbon, and new isotope systems such as magnesium, calcium, and potassium.
Higgins Research Laboratory
Upcoming Semester - SPRING 2021
GEO 360 / ENV 356 - Geochemistry of the Human Environment
Humans have profoundly altered the chemistry of Earth's air, water, and soil. This course explores these changes with an emphasis on the analytical techniques used to measure the human impact. Topics include the accumulation of greenhouse gases (CO2 and CH4) in Earth's atmosphere and the contamination of drinking water at the tap and in the ground. Students will get hands on training in mass spectrometry and spectroscopy to determine the chemical composition of air, water, and soil and will participate in an outreach project aimed at providing chemical analyses of urban tap waters to residents of Trenton, NJ.
In The News
Tuesday, Dec 17, 2019
Tuesday, Dec 3, 2019Emeritus Lincoln Hollister historical facts
Wednesday, Nov 27, 2019Bubbles of greenhouse gases trapped in ice shed new light on an important climate transition that occurred about a million years ago.
Friday, Nov 22, 2019Princeton University-led researchers have extracted 2 million-year-old ice cores from Antarctica that provide the first direct observations of Earth’...
Thursday, Nov 21, 2019
American University researchers sequence genome of the 'devil worm.'
Wednesday, Oct 30, 2019For three hurricane seasons in a row, storms with record-breaking rainfall have caused catastrophic flooding in the southern United States: Harvey in...
Wednesday, Oct 30, 2019The Department of Geosciences and Princeton University congratulates Dr. Yuzhen Yan on successfully defending his Ph.D. thesis: "Climate Snapshots...
Tuesday, Oct 29, 2019Professors Laure Resplandy and Daniel Sigman explain how the ocean absorbs heat and carbon dioxide, providing a buffer against climate change....
Tuesday, Oct 29, 2019Princeton professors Gabriel Vecchi and Sigrid Adriaenssens are investigating new storm surge barrier designs that would protect people, businesses...