I'm not so much worried about the biodiversity as such - earth will recover, and rather quickly I think. Humans may be a very peculiar extinction event, but just one among many.

But I do think that the loss of biodiversity is also telegraphing troubles for humanity, or at least the experiment in civilization we're currently all taking part in. The predatory ecosystem exploitation that we have been doing for the past two hundred years is catching up with us . And if we want to retain any chance to continue this experiment a few hundred years, we seriously have to change our approach in evaluating the worth that the earth's eco system has for us. You know, our very own life support system.

Currently we're losing about 30% of animal population every ten years. This cannot continue. We're wrecking the place. We are killing ourselves.

(My pet theory? This is the great filter!)