NewsWorldAmericasVideo: Dust cloud engulfs PhoenixFriday 19 August 2011 15:16 BSTBookmarkCommentsGo to commentsBookmark popoverRemoved from bookmarksClose popoverFor the third time in a month, hot weather has whipped up thick dust storms in Arizona, cutting power lines and delaying flights.More aboutArizonaEnergyHot WeatherPhoenixJoin our commenting forumJoin thought-provoking conversations, follow other Independent readers and see their repliesComments
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