1. John Curtin Distinguished Professor, Curtin Univ., GPO Box U1987, Perth, WA 6845, Australia (corresponding author).
2. Professor of Innovative Manufacturing, Birmingham City Univ., Business School, Perry Barr, Birmingham City Univ. B42 2SU, England.
3. Professor and Head of Brunel Business School, Brunel Univ., Uxbridge, Middlesex, UB8 3PH, UK.
4. DNV Clean Technology Centre, 10 Science Park Dr., DNV Technology Centre, Singapore 118224; formerly, Senior Lecturer, School of Public Health Curtin Univ., GPO Box U1987, Perth, WA 6845, Australia.