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What caused the ice ages? Tiny ocean fossils offer key evidence

December 10, 2020 ・ Liz Fuller-Wright

The last million years of Earth history have been characterized by frequent “glacial-interglacial cycles,” large swings in climate that are linked to the growing and shrinking of massive, continent-spanning ice sheets. These cycles are triggered by subtle oscillations in Earth’s…

Plastic pollution is everywhere. Study reveals how it travels

December 4, 2020 ・ Molly A. Seltzer

Plastic pollution is ubiquitous today, with microplastic particles from disposable goods found in natural environments throughout the globe, including Antarctica. But how those particles move through and accumulate in the environment is poorly understood. Now, a Princeton study has revealed…

How plants compete for underground real estate affects climate change and food production

December 3, 2020 ・ Liana Wait

You might have observed plants competing for sunlight — the way they stretch upwards and outwards to block each other’s access to the sun’s rays — but out of sight, another type of competition is happening underground. In the same…

Prof. Geeta Persad PhD ’16 on exploring environmental policy through HMEI-STEP

November 17, 2020 ・ Supriya Singh, Class of 2023

Geeta Persad, who received her Ph.D. in atmospheric and oceanic studies from Princeton in 2016, was a 2013 HMEI-STEP Graduate Fellow, which allowed her to pursue — with financial support from the High Meadows Environmental Institute (HMEI) — the environmental…

Tighter border policies leave migrants vulnerable to effects of climate change

October 12, 2020 ・ B. Rose Huber

As the planet continues to warm, people living in the world’s most vulnerable regions — such as arid or low-lying nations — must contend with the decision to stay in a place where livability is decreasing, or leave for countries…

PEI-STEP Fellows to explore environmental policy, from emerging pathogens to preparing cities for climate change

July 27, 2020 ・ Morgan Kelly

Princeton University graduate students Paris Blaisdell-Pijuan, Kairui Feng and Jeffrey Lee have been awarded 2020 PEI-STEP Environmental Policy Graduate Fellowships from the Princeton Environmental Institute (PEI) to explore emerging topics in environmental policy such as renewable energy and global health.…

Walbridge Fund graduate researchers explore environmental topics, from dwarf forests to rugged bacteria

July 7, 2020 ・ Morgan Kelly

The Princeton Environmental Institute (PEI) has selected four Princeton University graduate students as 2020 recipients of the Walbridge Fund Graduate Award for Environmental Research. The awardees are Danielle Chase, Nicolas Choquette-Levy, Zachary Garvin and Julie Tierney. They represent the departments of…

Study on shorebirds suggests that when conserving species, not all land is equal

June 9, 2020 ・ Morgan Kelly

Princeton University researchers may have solved a long-standing mystery in conservation that could influence how natural lands are designated for the preservation of endangered species. Around the world, the migratory shorebirds that are a conspicuous feature of coastal habitats are…

Hack Graduate Award recipients explore water issues from groundwater cleanup to carbon-capturing crystals

June 4, 2020 ・ Morgan Kelly

The Princeton Environmental Institute (PEI) has selected seven Princeton University graduate students as 2020 recipients of the Mary and Randall Hack ’69 Graduate Awards for Water and the Environment. The awardees are Francisco Carrillo, Eunah Han, Julie Kim, Aleksander Musiał,…