The past existence of green areas in the Sahara desert remains uncertain, although some research suggests it is a possibility. The Sahara, situated in the tropics, experiences year-round summer weather. However, due to its vast size, the climate varies across different regions.
In the northern Sahara, summer temperatures can soar up to 50 degrees Celsius (122 degrees Fahrenheit), creating inhospitable conditions for plant growth. Conversely, the southern Sahara can experience winter temperatures dropping below freezing point. These variations imply the potential existence of green areas in the past.