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Foam could offer greener option for petroleum drillers

Publish Date: 
Thursday, August 9, 2018 - 11:00am

Princeton researchers have experimentally tested the fracturing behavior of foam for use in hydraulic fracturing, which would use about 90 percent less water than fracking fluids, but the mechanism for foam-driven fracture is not well understood. The research was supported by PEI's Mary and Randall Hack ’69 Graduate Fund and Carbon Mitigation Initiative and led by PEI associated faculty Howard Stone, the Donald R. Dixon '69 and Elizabeth W. Dixon Professor of Mechanical and Aerospace Engineering.

Ocean's heat cycle shows that atmospheric carbon may be headed elsewhere

Publish Date: 
Tuesday, June 19, 2018 - 12:30pm

A Princeton University-led study in the journal Nature Geoscience examined the global carbon cycle and suggests that scientists may have misgauged how carbon is distributed around the world, particularly between the northern and southern hemispheres. The results could change projections of how, when and where the currently massive levels of atmospheric carbon will result in environmental changes such as ocean acidification.

So much depends on the velocity of tiny droplets cast upward

Publish Date: 
Thursday, March 8, 2018 - 2:30pm

New research describes the velocity of aerosols cast upward as bubbles on a liquid's surface burst. Above the ocean, these droplets transfer moisture, salt, and even toxins such as algae from water to air. Knowing the speed and height of aerosols applies to numerous areas of scientific and economic interest, including more accurate climate modeling or creating a perfect glass of champagne.

Predicting snowpack in the West before the first flake falls

Publish Date: 
Wednesday, January 24, 2018 - 9:00am

New Princeton-NOAA research suggests that annual snowmelt in the American West can be predicted to the scale of a mountain range as early as March — some eight months before winter begins. The research has the potential to improve water-related decisions for numerous sectors, including agriculture, tourism and fire-control.

No more free rides: How to value and govern water for the future

Publish Date: 
Thursday, December 7, 2017 - 12:00pm

Efforts to provide the world with clean and accessible water unravel when people try to determine how much water is actually worth, according to a paper published Nov. 24 in the journal Science. The paper's 13 authors lay out four steps for valuing and governing water sustainably. Based at institutions and universities around the world — including Princeton University — the researchers wrote the paper for the Valuing Water Initiative announced in May by the United Nations and the World Bank, which intends to identify methods for determining the value of water.

PEI Faculty Seminar Series: Ocean Acidification

Fall 2017 PEI Faculty Seminar Series - 11/7/2017

François M.M. Morel, Albert G. Blanke, Jr., Professor of Geosciences, professor of geosciences and the Princeton Environmental Institute

Taplin Environmental Lecture: "The Future of Water" by Peter Gleick

Tuesday, September 26, 2017 - 4:30pm to 6:00pm Peter Gleick, President Emeritus of the Pacific Institute and a renowned expert on water and climate issues, will present, "The Future of Water," at 4:30 p.m. Tuesday, Sept. 26, in Guyot Hall, Room 10. Gleick is the chief scientist, president emeritus and co-founder of the Pacific Institute in Oakland, California. He is appearing as part of the Taplin Environmental Lecture series.

Amilcare Porporato, 10 associated faculty join PEI

Publish Date: 
Thursday, September 28, 2017 - 11:15am

The Princeton Environmental Institute has added core faculty member Amilcare Porporato, professor of civil and environmental engineering and the Princeton Environmental Institute, and 10 associated faculty to its roster of researchers and educators whose work focuses on or relates to the environment.

Eight graduate students receive 2017 Hack Awards for study of water issues

Publish Date: 
Friday, July 21, 2017 - 10:30am

Eight Princeton University graduate students were selected to receive a Mary and Randall Hack ’69 Graduate Award from the Princeton Environmental Institute. The award provides up to $8,000 in research funding to Princeton graduate students exploring water and water-related topics. The 2017 recipients are Kessie Alexandre, Keita DeCarlo, Ying Liu, Hamid Omidvar, Melany Ruiz, Kimia Shahi, Kaia Tombak and Siyuan (Henry) Xian.

Invention produces cleaner water with less energy and no filter

Publish Date: 
Monday, May 8, 2017 - 10:45am

Researchers in the lab of Howard Stone, professor of mechanical and aerospace engineering and PEI-associated faculty, have reported in the journal Nature Communications a technique for using carbon dioxide in a low-cost water treatment system that eliminates the need for costly and complex filters.