Cooling was accompanied by precipitation: rain on the coast and snow in the mountains, which formed a temporary snow cover.
Located in the north of Chile, Atacama Desert is the most arid place on earth. Below 50 mm of rain is a years average here. In some places precipitation comes only once in few decades. In the Antafogasta area the year average precipitation is only 1 mm. Some weather stations have never recorded rain.
According to the research of scientists from the UK, there are river beds that havent seen water in the past 120,000 years.
