Socio-Economics and the Environment in Discussion Graham Turner June 2008 ISSN: 1834-5638 © CSIRO 2007. All rights reserved. This work is copyright. Apart from any use as permitted under the Copyright Act 1968 (Cwlth), no part may be reproduced by any process without prior written permission from the Commonwealth. Further information: Clive Spash - www.clivespash.org Bev Rose - bev.rose@csiro.au