The Great Barrier Reef is one of the planet’s natural jewels, stretching for more than 2,300km along Australia’s north-east.

But as well as being a bucket-list favourite and a heaving mass of biodiversity across 3,000 individual reefs, the world heritage-listed organism is at the coalface of the climate crisis.

Yet this week, a report on the amount of coral across the reef showed the highest level in the 36 years of monitoring in the north and central parts.

But that does not mean the crisis is over.