Times (UK): The year is 2050, and the few remaining coral reefs are thriving. The tourists who flock to admire their vibrant seascapes and their clouds of multicoloured fish need no boat or dive gear, however. The world’s only surviving coral ecosystems are contained in enormous aquaria where conditions can be carefully regulated. Out in the ocean itself, a collision of unconstrained human impacts have reduced reefs to grey rubble. This is the nightmare scenario envisioned by marine …