This is a terrific presentation that really breaks down the complexities of our current biological diversity problems and what YOU can do to help. It is really worth the time to watch. If you’re pressed for time you can skip the first few minutes with the lady and at 1:10:00 the presentation is over by Dr. Tallamy and you can chose whether you want to listen to the Q &A. So you could call this a 1 hour lecture.
He also has a book called “Bringing Nature Home” I have shelves and shelves of environmental and gardening books but it appears this one got stuck on my “want list” and not actually purchased for reading. I shall go fix that.