The cost of riding more marine heatwaves

Slowly but surely, the sea is warming.

And maybe this sounds like good news if you’re a beach-lover or an ocean swimmer. But the more detrimental effects of shifting sea temperatures are starting to show themselves.

Earlier this year, we caught a hint of the devastation when millions of Fiordland native sea sponges were found to have been bleached bone white in the wake of a marine heatwave, the largest event of its kind reported anywhere in the world.

Now, a new report from the Ministry for the Environment lays out the threat posed by marine heatwaves in plain terms – existential, economic and cultural.