When one thought of a desert, images of sweltering heat and dry scorching weather came to mind; places like the Sahara or the Mojave. But, a desert could actually be any waterless, desolate area of land with little to no vegetation. It had nothing to do with temperature. In fact, the coldest and largest desert in the world was The Antartic Ice Sheet in Antarctica!
Over in Mongolia, Dr. Li and Dr. Ren had just arrived in another famous cold desert - The Gobi Desert. Here, the weather got so cold that it could even snow in winter. Fortunately, it was the end of August, a pleasant time of year when daytime temperatures averaged at 27 degrees celsius and nighttime temperatures averaged at 15 degrees celsius.