Vehicles move under ashes emitted by the Cotopaxi volcano in a highway near to the National Cotopaxi Park, in Cotopaxi province, Ecuador, on Aug. 25, 2015. (Xinhua/Santiago Armas)
Vehicles move under ashes emitted by the Cotopaxi volcano in a highway near to the National Cotopaxi Park, in Cotopaxi province, Ecuador, on Aug. 25, 2015. (Xinhua/Santiago Armas)