How did it change?
Thanks for shedding light on this -- I knew about the "green" Sahara but didn't know the hypotheses for the shift. I've been quite enjoying your Substack lately because of posts like this.
Thanks for shedding light on this -- I knew about the "green" Sahara but didn't know the hypotheses for the shift. I've been quite enjoying your Substack lately because of posts like this.