Opponents of a new airport in the Thames Estuary have welcomed a government decision to designate the land earmarked for the project as a new wildlife haven.
The Thames Marshes have been included in a list of 12 Nature Improvement Areas and campaigners believe this could scupper the project.
The RSPB and Medway Council believe the airport would damage the environment.
However, supporters of the idea say the UK needs more airport capacity.
The airport would be built partly on reclaimed land and could be on either an island or a peninsula.
A ray of hope.