Justin B. Ries

Justin Ries

PhD, 2005, Biogeochemistry, The Johns Hopkins University
M.A., 2002, Biogeochemistry, The Johns Hopkins University
BA (abroad), 1996, Geosciences, Edinburgh University
BA, 1998, Geosciences, magna cum laude, Franklin and Marshall College

Area(s) of Expertise

Carbonate Biogeochemistry, Biomineralization, Ocean Acidification, Paleoceanography

Research Interests

Professor Ries’ research program investigates a wide range of subjects in the marine and geological sciences, including global climate change, paleoceanography, paleobiology, carbonate sedimentology, sulfur isotope geochemistry, biomineralization, and carbon sequestration.  The common thread throughout Prof. Ries’ work is oceanic change, which he investigates over broad temporal scales.  By combining field studies with complementary laboratory experiments, Prof. Ries is able to directly explore the biogeochemical processes that have changed the state of our oceans throughout the geologic past, as well as those that will drive critical changes in the immediate future.

Lab Website



Marine Science Center
430 Nahant Road
Nahant, MA 01908

Great Barrier Reef bleaching endangers “precious resources,” researcher says

The massive bleaching of Australia’s Great Barrier Reef is even worse than anticipated, according to new research released this month. We asked Northeastern’s Justin Ries, a marine geologist, about the significance of these findings and why the destruction has been so swift and severe.

Using living boulders to reconstruct the history of ocean acidification

It is widely known that rising levels of atmospheric carbon dioxide are making the oceans more acidic, but how much have the oceans changed since the Industrial Revolution, and what impacts are these changes having on creatures inhabiting the ocean? Associate Professor Justin Ries is looking to rock-forming ‘coralline’ algae to answer these questions.

A slightly more acidic ocean may help coral species

New research from Marine and Environmental Sciences professor Justin Ries explains how moderate increases in ocean acidification and temperature can enhance the growth rates of some reef-forming corals.