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University of Rochester Ice Core Lab


Our research aims to understand natural and anthropogenic climate change through a lens of atmospheric composition. We use ancient air trapped in glacial ice from Greenland and Antarctica to learn about how the concentrations and isotopic composition of greenhouse gases and reactive gases have varied in the past, and what these changes tell us about Earth’s climate and atmospheric chemistry. 

Research Interests:

  • Quantifying cosomogenic production of 14C in glacial ice
  • Understanding past changes in the global CH4 budget
  • Reconstructing the history of atmospheric CO concentrations and stable isotopic composition


Cosmogenic Carbon-14 in Glacial Firn and Ice

C-14 in glacial ice link
Photo by V.Petrenko

Changes in Natural Methane Emissions in a Warming World

CH4 Changes link
Photo by V.Petrenko

Past Variations in Carbon Monoxide and Atmospheric Chemistry

CO variations link
Photo by B.Hmiel

Ice Cores Slideshow