“Dramatic pictures show how ocean life is dying”
Imagine a sea full of slime, where only jellyfish flourish – and fish have been slaughtered in their millions by stinging tentacles.
Imagine oceans full of “dead zones” where nothing lives, the water poisoned by fertilisers and human sewage.
Imagine seas so acidic the water damages seashells – and oceans so over-fished that many of the species we take for granted no longer exist.
This apocalyptic vision is only 40 to 50 years away, according to The Ocean of Life, a new book by marine biologist Professor Callum Roberts.
And in some of our seas it is already a reality.