From Department for Environment, Food & Rural Affairs (DEFRA):
UK Climate Change Risk Assessment (CCRA)

The Government published the UK Climate Change Risk Assessment (CCRA) on 25 January 2012, the first assessment of its kind for the UK and the first in a 5 year cycle. Read it here…

You may already be aware of DEFRA’s climate change risk assessment (CCRA) but the marine specific considerations and evidence can be found here – Marine and Fisheries:

Summary (PDF 650KB)
Sector Report (PDF 2.5MB) (html version)

This presentation summarised those findings:
UK Climate Change Risk Assessment 2012