School of Earth and Environment

Stephen Arnold Dr Stephen Arnold

Associate Professor of Atmospheric Composition

Telephone number: +44(0) 113 34 37245
Email address:
Room: 11.102

Affiliation: Institute for Climate and Atmospheric Science

Link to personal page


My research focuses on the processing and transport of trace gases and aerosols in the atmosphere, and their interactions with the Earth's biosphere & climate system. This research is key to improving our understanding of changes in present-day and future climate & air quality. I am interested in better understanding the intimate coupling between atmospheric chemistry, climate and the biosphere. I use numerical models in conjunction with observations from aircraft, satellites and surface sites to investigate these fundamental processes.


  • BA, MSci Natural Sciences (Cambridge)

  • PhD Atmospheric Science (Leeds)


  • Member of European Geosciences Union.
  • Member of American Geophysical Union.
  • Member of NERC peer review college.
  • Member of Arctic Council AMAP (Arctic Monitoring and Assessment Panel) working group on short-lived climate forcers.
  • Joint coordinator of international POLARCAT Model Intercomparison Project (POLMIP).
  • Lead investigator for Arctic impacts assessment in HTAP (Hemispheric Transport of Air Pollution) 2016.

Research Interests

  • Tropospheric photochemistry.
  • Short-lived climate pollutants in the Arctic.
  • Organic species in the remote atmosphere.
  • Ozone-vegetation interactions.
  • Chemistry-climate interactions.

Teaching Interests

I teach on a number Level 2 and Level 3 modules on the topics of atmospheric chemistry and climate science. In addition, I teach on a Level 1 field course examining pollution transport in a river in the Lake District.

Support duties

Programme Leader: BSc & MEnv Environmental Science.