Here's a nontechnical, concise explanation of the importance of biodiversity in maintaining healthy ecosystems, and how those ecosystems provide value to us.
https://www.youtube.com/watch?v=BCH1Gre3Mg0
The clip is only nine minutes long.
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Biodiversity loss rivals climate disruption as an existential threat to humans for many more reasons than those covered in the piece at the link above. Am working on a second book, tentatively titled "Biodiversity - the Bedrock of Human Existence". Have barely started the journal research, but already I can see that biodiversity has deep and crucial connections to soil health, plant and animal health, and ecosystem functioning in general. Plus, due to critical biogeochemical cycles and biodiversity's part in them, it helps regulate climate. Everything is interconnected.
Unfortunately, I suspect not nearly enough people on Main Street grasp the significance of declining populations in the wild and ultimately, species extinction. We're already in dire straits with this situation, and not doing enough to mitigate it. More on mitigation at a later time.
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Not only my opinion. Be Well