1. Global Change Institute, University of Queensland, St. Lucia QLD 4072, Australia
2. School of Psychology, University of Western Australia, Crawley WA 6009, Australia
3. Geography Department, Weber State University, 1299 Edvalson Street, Department 1210, Ogden, Utah 84408-1210, USA
4. Physical Sciences Department, Suffolk County Community College, Selden, New York 11784, USA