Dr Thomas Longden is a Senior Research Fellow at the Urban Transformations Research Centre, Western Sydney University. Thomas holds a PhD in environmental economics from the University of New South Wales (UNSW).

His work on energy and technological change has been published in leading international journals (including Nature Energy, Climatic Change, Energy Economics, Energy, Technological Forecasting and Social Change, and Energy Policy).

Thomas was a Contributing Author on the AR5 WGIII Intergovernmental Panel on Climate Change (IPCC) report titled Mitigation of Climate Change.

Before joining WSU, Thomas was based at the Australian National University, the University of Technology Sydney, Macquarie University, the University of Sydney and Fondazione Eni Enrico Mattei (FEEM) in Milan, Italy.