Increasing concentrations of CO2 in the air and oceans are changing the chemistry of our ecosystems and causing warming/ acidification of oceans. We are dependent on our oceans which cover 70% of Earth’s surface and contain 97% of our water. Meanwhile fresh water supplies are declining. We need to restore these sustems and grow more biomass (Fish, shellfish—all the biodiversity) in our oceans to reduce pressure on land with a growing global population. Biodiverse systems are resilient.