SciShow and other vlogbrothers related channels have often mentioned the current biodiversity crisis (holocene extinction) in the context of the harm that humans do to the planet. However, to my knowledge there hasn't been a video yet produced devoted to that particular topic. I don't think most people understand just how serious the situation is.
A short list of possible discussion points:
- The monetary value of biodiversity (pharmaceuticals, genetic diversity, untapped food sources, raw materials, and the services [e.g., pollination] provided]
- The aesthetic value of biodiversity
- Estimates of biodiversity
- Past extinctions and the time required for diversity to fully recover (millions of years)
- Estimates of extinction rates (before H. sapiens and present rates)
- IUCN Redlist and biodiversity hotspots around the world, as well as the current conditions of those hotspots