1 The Environmental Assessment of Southern North Sea Pipeline Decommissioning Centre for Environmental Risk Research Report No: August 2001 Patrick Cox*, Simon Gerrard Centre for Environmental Risk School of Environmental Sciences University of East Anglia Norwich NR4 7TJ *contact details for all correspondence: Tel: (01603) 592547 Fax: (01603) 507719 Email: patrick.cox@uea.ac.uk