> The Sahara in its current state is much more barren in terms of ecological diversity than it once was.
Then answer me this... What would be an appropriate level of diversity?
Then answer me this... What would be an appropriate level of diversity?
additionally, humans are currently contributing to desertification in a way most other species can not
if your point is that "deserts would have existed anyway" that's fine, but it's still the collapse of a localized system due to external factors (in this case, a system collapse caused by earth's orbit/axial changes)
> 3 in the Shannon index