I don’t eat seafood (though that’s a taste choice, not an ecological one). I teach earth and environmental science to high schoolers and I try to show (rather than just tell) how important the natural world is for the sake of our future survival.

I’m honestly not sure how to avoid the tragedy of the commons with the ocean since most of the ocean is unregulated. Commercial, industrial-scale fishing companies can take as much as they want without upfront costs, so there is strong economic incentive to resist all regulations (imagine if you could just take all the cows from a field without paying for them or the land… there’d be no cows left). I suppose stronger international pressure to not buy from these type of operations could reduce how much the oceans are over-fished. Marine sanctuaries might help, too. Actual progress would require enforcement capabilities in as many places as possible, otherwise shady companies would just move to new locations.