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June 16, 2026
Allie Balter-Kennedy
Exploring crystal cores to foresee nan effects of ambiance change
By Claire Cameron

Jessine Hein
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Allie Balter-Kennedy goes to immoderate of nan harshest places connected Earth to effort to foretell really a warming ambiance will effect nan planet’s crystal sheets. The Tufts University intelligence useful pinch a team, sometimes drilling hundreds of feet down into nan ice, to research changes that person occurred complete thousands, moreover millions of years. The history of Earth that is hidden successful nan cores helps her foresee its future.
To study nan cores, she uses a method called cosmogenic-nuclide vulnerability dating, which exploits nan truth that Earth is perpetually bombarded pinch cosmic rays made up of charged particles. Those particles interact pinch atoms successful our ambiance and connected nan planet’s surface, creating isotopes. By measuring nan levels of isotopes successful long-buried halfway samples, scientists tin estimate really agelong it’s been since that stone was exposed to nan atmosphere. And knowing erstwhile nan onshore was past ice-free tin thief scientists amended understand what ambiance processes were going connected astatine nan time.
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Balter-Kennedy’s activity has taken her to Antarctica and to nan Arctic, including Greenland, wherever she spends weeks astatine a clip surviving successful a shelter connected nan crystal sheet—a challenging situation but 1 Balter-Kennedy relishes. “The facet of getting to beryllium extracurricular and activity successful distant places and nan collaborative quality of each this fieldwork are fundamentally what drew maine to this section successful nan first place,” she explains.
Balter-Kennedy hadn’t ever planned connected a life successful academia. These days she is getting a clang people successful nan much administrative broadside of being an early-career academic—applying for grants, school undergraduates and recruiting group to activity successful her laboratory. But successful nan meantime, she is driven by her cardinal questions of what ambiance alteration will bring and what she whitethorn find successful nan depths of nan planet’s ice.
This article is portion of “The Young American Scientists,” an editorially independent task that was produced pinch financial support from Regeneron.
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