A calving glacier in Neko Harbor, Antarctic Peninsula (Image: L. Yeung).

A calving glacier in Neko Harbor, Antarctic Peninsula (Image: L. Yeung).


The Earth is a complex machine.

We are scientists investigating the physics and chemistry of the Earth system. We use stable isotopes as our primary tool, exploiting natural variations in their abundances to unravel the inner workings of Earth's complex machinery. We focus on the atmosphere and the oceans, but our research spans a range of time and space: from microseconds to millennia, and from molecules all the way to the big blue marble.


Hot off the presses

  • Yeung, L. Y., J. A. Haslun, N. E. Ostrom, T. Sun, E. D. Young, M. A. H. J. van Kessel, S. L├╝cker, and M. S. M. Jetten, "In situ quantification of biological N2 production using naturally occurring 15N15N," Environ. Sci. Technol. 53 (2019) 5168-5175. doi: 10.1021/acs.est.9b00812.
  • Li, B., L. Y. Yeung, H. Hu, and J. L. Ash, "Kinetic and equilibrium fractionation of O2 isotopologues during air-water gas transfer and implications for tracing oxygen cycling in the ocean," Mar. Chem. 210 (2019) 61-71. doi: 10.1016/j.marchem.2019.02.006

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