| | SHOWING OFF FOR EARTH DAY | |  | | Children watch the Calbuco volcano erupt, from Puerto Varas, Chile, Wednesday, April 22, 2015. The volcano erupted billowing a huge ash cloud over a sparsely populated, mountainous area in southern Chile. Authorities ordered the evacuation of the inhabitants of the nearby town of Ensenada, along with residents of two smaller communities. Credit: AP Photo/Carlos F. Gutierrez | | | | |