The BBC explains.
One assessment published two years ago by the UN Environment Programme (Unep) concludes reefs provide services worth on average between $100,000 and $600,000 (£50,000 and £300,000) per square kilometre each year.
If the Reefs go, that’s not only a loss for the environment and the health of most species on the planet, it’s a loss of a ton of money!
