The success of the Blue Planet series reminded me of the enormous amount of work we are doing to lead the way in making our oceans safe and to protect the creatures that inhabit them.
For example we are banning microbeads and looking at how a return scheme for plastic bottles might work. This will have a big impact on marine life. Extending the Blue Belt alone will protect about 150,000 rare seabirds.
As the chairman of Natural England, Andrew Sells, has said "Extending the Blue Belt gives vital new protection to some of our most precious coastal wildlife."