End of the lineGo into any seafood restaurant and look at the walls. I'm guessing you'll see pictures from 20 - 50 years ago that are showing very large fish, probably in the act of being caught.
Fast forward to today and I'm guessing you know very few people that have caught a fish anywhere near the sizes in those photos. As many people know, most of the large fish are gone. Actually they were taken a while ago. Today we've taken the small fish and in some cases all the fish... yes, we collapsed entire fisheries. Entire species are being lost.
That's kind of an abstract concept.
Until it isn't abstract at all.
We may be closer to that point than we know.