Research

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

Projects:

Cosmogenic Carbon-14 in Glacial Firn and Ice

Photo by V.Petrenko

Changes in Natural Methane Emissions in a Warming World

Photo by V.Petrenko

Past Variations in Carbon Monoxide and Atmospheric Chemistry

Photo by B.Hmiel

Ice Cores Slideshow