I am an isotope geochemist and paleoceanographer using various isotopic tools to understand Earth's past climate. In particular, I work with 'clumped isotopes' to understand past temperature change on Earth (as well as within other planetary bodies). I also utilise stable, radiogenic and cosmogenic isotopes in the context of paleoclimatology and paleoceanography, and the evolution of the earth.

I manage the NICEST Lab at Northumbria University. We are interested in using isotopic and elemental concentration based tools for characterization of modern environmental conditions, and for reconstructing palaeoclimate from periods varying from the Holocene to the Precambrian. We use several different materials and archives to do this: fossils, speleothems, carbonate minerals, soils and sediments, and water. 

Specifically, we measure the Δ47, δ13C and δ18O composition of carbonate archives, δD and δ18O of water, and the nitrogen and carbon content and δ13C and δ15N of organic materials, including soils and sediments.