As Sir David Attenborough turns 99, he is unveiling his latest documentary, with a stark message to protect the oceans before it's too late. He says that without immediate intervention, the oceans will be unrecognisable in two decades.
He says, “This is the story of our ocean, and how we must write its next chapter together. For if we save the sea, we save our world. After a lifetime of filming our planet, I’m sure that nothing is more important.”