1. Senior Research Fellow in Science Communication in the Department of Applied Sciences, University of the West of England, and Associate Lecturer at the Lancaster Environment Centre, Lancaster University, UK
2. Research Associate in Department of Applied Sciences, University of the West of England, UK.
3. Research Assistant in the Department of Applied Sciences, University of the West of England.
4. Professor in Plant Ecology and Soil Biogeochemistry at the Lancaster Environment Centre, Lancaster University, UK