Some useful links for further information:
RSPB's view on their land between Bracklesham and Selsey
MARINET - campaigns to protect the marine environment around the coast of the UK
The email address to send the EA's questionaire to is: pehcds@environment-agency.gov.uk
Downloadable documents:
The Environment Agency "planning for the future" pdf document
The Environment Agency - Latest newsletter pdf document
The Environment Agency - Selsey Peninsula Strategy Review - Technical Report (Large (25MB) zip document)