Previously there was speculation that humans may have contributed to Sahara desertification, e.g. https://www.smithsonianmag.com/science-nature/what-really-turn

Previously there was speculation that humans may have contributed to Sahara desertification, e.g. https://www.smithsonianmag.com/science-nature/what-really-turned-sahara-desert-green-oasis-wasteland-180962668 https://www.smithsonianmag.com/science-nature/what-really-tu...