Brett Whiteley (Australian, 1939-1992), The Divided Unity, 1974. Screenprint, 66.5 x 93.5 cm. Edition 63/70.
A white shelf cloud caps brownish dirt from a dust storm, or haboob, as it travels across the Indian Ocean near Onslow on the Western Australia coast in this handout image distributed by fishwrecked.com and taken January 9, 2013. (Reuters/Brett Martin/fishwrecked.com)