to me humans are ruinous to their enviroment the more organised and complex a society gets the least respect it has for the place where they eat and drink and if you keep pissing and defecating on the place where you eat somewhere along the way it´s going to derail and somethings bad gonna happen if it´s natures doing then humans will find a way to make it worse

as for them not being setled today several amazonian tribes are not setled they ar nomadic roaming the amazon and their subsidiaries and yet they still produce yams and a few other crops

and seriously what better example then river people to exemplify the river peoples that existed in the sahara at this time

In the 1960s, the archeologist Gabriel Camps investigated the remains of a hunting and fishing community dating from about 6700 BCE in southern Algeria. These pottery-making people (the "wavy line" motif again) were black African rather than Mediterranean in origin and (according to Camps) evidenced definite signs of deliberate cultivation of grain crops as opposed to simply the gathering of wild grains.[6] Later studies at the site have shown the culture to be hunter gatherers and not agriculturalists, as all the grains were morphologically wild, and the society was not sedentary.

i prefer to believe the original analises it makes no sence to move your entire family around in the worst case they stay in a few places wich are safe while the men roam all over to gather whats necessary like many african tribes living in the edges of the sahara do women and old people stay in the village and produce crops the men go around with the catle and return now and then to bring milk and meat

ofc that you also have other examples like the original persians who turned a desertic plateau into fertile grasslands by building chanels and it originated the persian empire and the 1st declaration of human rights but humans by the most part are greedy and insecure and always end up screwing up exacebating natures evil side so to speak

i stand my ground if there where humans living in the sahara they contributed to the problem for the most part and yes humans do have a big impact on the health of the planet and the state of the climate as big as the sumatra volcano who almost wiped out humans themselfs 60.000-80.000 years ago and created a nuclear winter that laster for a couple of years

and trust me there where humans there hundreads of thousands of them the sahara was a very rich land back then able to suport massive comunities with fish grain game and gathered food