Biodiversity falls below ‘safe levels’ globally
This is indeed very depressing. A very excellent book about the scope of this problem is "The Sixth Extinction" [1]. One crazy anecdote from the book: the author explains how rare it should be to witness <i>any</i> extinction of a species within one's lifetime. The average "background" rate of extinction is something like one per one thousand years. During the course of writing the book, the author <i>personally</i> witnessed something like five species go extinct. It some ways this is an incredible time to be alive, but in many it's the most depressing time one could imagine... ever?<p>[1] <a href="https://en.wikipedia.org/wiki/The_Sixth_Extinction:_An_Unnatural_History" rel="nofollow">https://en.wikipedia.org/wiki/The_Sixth_Extinction:_An_Unnat...</a>