It seems the parameters for healthy ocean ecosystems is much tighter than on land and much more sensitive to change. The UK has similar issues (https://www.theg

It seems the parameters for healthy ocean ecosystems is much tighter than on land and much more sensitive to change. The UK has similar issues (https://www.theguardian.com/environment/2021/mar/04/catastrophic-uk-has-lost-90-of-seagrass-meadows-study-finds https://www.theguardian.com/environment/2021/mar/04/catastro...) and Australia is well documented. Outside of mechanical damage and over fishing, it's hard to know what could help, you can't really adjust ocean conditions, it's just too vast - for example something fundamental in relation to temperature and water acidity has changed meaning you can't just replant, it'd just suffer the same fate. It kind of implies to save the oceans climate change needs to be improved globally.