Warm seas kill coral reefs, and ecosystems depend on these coral reefs for sustenance and protection (hard for a colorful fish to camouflage itself in a bleache

Warm seas kill coral reefs, and ecosystems depend on these coral reefs for sustenance and protection (hard for a colorful fish to camouflage itself in a bleached reef). It's also allowing Jelly Fish colonies to multiply out of control, which are pretty much devoid of nutritional value.