Dr Mark Diesendorf teaches in the Institute of Environmental Studies at the University of New South Wales and is the director of a company that does consulting and training on various aspects of ecologically sustainable development. Diesendorf has been Professor of Environmental Science at the UTS; a principal research scientist with the CSIRO; Vice-President of the Australia New Zealand Society for Ecological Economics; Vice-President of the appropriate technology association APACE; and a committee member of the Australia and New Zealand Solar Energy Society. He is co-editor with Clive Hamilton and principal author of 'Human Ecology, Human Economy: Ideas for an Ecologically Sustainable Society', and co-author of the scenario study 'A Clean Energy Future for Australia'.