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
Wednesday, Nov 18, 2020Ten storms rapidly intensified this Atlantic season, some to a record degree. (Prof. Gabe Vecchi mention)
Wednesday, Nov 11, 2020
Well, it’s complicated, but a new study suggests that climate change makes some elements of destructive hurricanes even worse.
Friday, Nov 6, 2020During most years, hurricanes and their activity would have long since waned by now. But in 2020, with about a month left of official Atlantic...
Wednesday, Nov 4, 2020Ashley Maloney is among the recipients of the 2020 Simons Foundation Postdoctoral Fellowships in Marine Microbial Ecology.
Thursday, Oct 29, 2020GEO's associated program Princeton Environmental Institute (PEI), the University’s interdisciplinary center for environmental research, education...
Thursday, Oct 29, 2020On October 29, the National Science Foundation (NSF) announced a $53 million grant — shared among a consortium of the country’s top ocean research...
Monday, Oct 19, 2020
In 2018, Chemistry, Geosciences, and Environmental Studies Librarian Emily Wild joined...
Thursday, Oct 15, 2020Environmental challenges have galvanized activity across Princeton’s campus in recent years like few other issues in our history. From physical,...
Thursday, Oct 15, 2020You can now explore the full scope of Princeton’s latest environmental research – plus the University’s legacy of environmental commitment – through...