

Two million-year-old ice cores provide first direct observations of an ancient climate
November 21, 2019 ・ Morgan KellyPrinceton University-led researchers have extracted 2 million-year-old ice cores from Antarctica that provide the first direct observations of Earth’s climate at a time when the furred early ancestors of modern humans still roamed. Gas bubbles trapped in the cores —…
PEI awards $1.01 million in Water and the Environment Grand Challenge projects
October 1, 2019 ・ Morgan KellyThe ecological impacts of extreme weather, a national “climate park” in the New Jersey Meadowlands, and engineered nanoparticles that target groundwater pollutants are among the 13 projects funded by the Princeton Environmental Institute (PEI) as part of its Water and…
PEI Urban Grand Challenges awards $509,000 to new urban sustainability projects
January 17, 2019 ・ Morgan KellyVertical farms in post-industrial America, origami-based noise-pollution barriers, and cement made from burned waste make up the latest round of projects funded by the Princeton Environmental Institute (PEI) Urban Grand Challenges program. Totaling $509,000, the new awards are active through September…
Combining science and service: Studying lead contamination in Trenton, N.J.
April 2, 2018 ・ Morgan KellyThe project “Urban Tap Water and Human Health” funded by PEI’s Urban Grand Challenges program combines science with community service


PEI Awards $374,000 for Innovative Research, Teaching, Mentorship, and Service focused on Urban Sustainability
February 7, 2017 ・ Joanna M. Foster ’08 for the Princeton Environmental InstitutePrinceton Environmental Institute has announced awards totaling $374,000 to support five faculty research projects as part of the Urban Grand Challenge – one of several long term research cooperatives that comprise its Grand Challenges program. With the majority of the…


Ice Cores Reveal a Slow Decline in Atmospheric Oxygen Over the Last 800,000 Years
September 23, 2016 ・ Morgan Kelly, Office of CommunicationsPrinceton University researchers have compiled 30 years of data to construct the first ice core-based record of atmospheric oxygen.
Princeton Researchers Go to the End of the Earth for the World’s Oldest Ice
March 15, 2016 ・ Morgan Kelly, Office of CommunicationsJohn Higgins led a team of researchers who reported in 2015 the recovery of a 1-million-year-old ice core from the remote Allan Hills of Antarctica, the oldest ice ever recorded by scientists.
Million Year-Old Ice Holds Answers to Climate Record
May 17, 2015 ・ Igor HeifetzA team of researchers with members from Princeton University, the University of Maine and Oregon State University has found that greenhouse gasses a million years ago, were only slightly higher than they were between 450,000 and 800,000 years ago. In…
PEI Gives Climate and Energy Research at Princeton a $1.1 Million Boost
October 17, 2011 ・ Pascale Maloof PoussartThe Princeton Environmental Institute (PEI) has announced $1.1 million in new awards to support climate and energy research at Princeton University. The new endeavors will engage faculty investigators with expertise spanning nuclear energy policy, wind energy technology, carbon capture and…