Halley Mastro

(She/her/hers)

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  • Graduate Fellow of the Gund Institute for Environment. Graduate Research Assistant in Natural Resources and Environmental Science, University of Vermont
Under a microscope, a tiny elongate poppy seed, small tan spikemoss megaspores and black soil fungus spheres found in soil recovered from under 2 miles of Greenland’s ice. Halley Mastro/University of Vermont

Ancient poppy seeds and willow wood offer clues to the Greenland ice sheet’s last meltdown and a glimpse into a warmer future

Paul Bierman, University of Vermont and Halley Mastro, University of Vermont

Our discovery of a tundra ecosystem, frozen under the center of Greenland’s ice sheet, holds a warning about the threat that climate change poses for the future.