1 See a doctor if canker sores are accompanied by fever, last more than three weeks, or the affected individual has difficulty swallowing.  Multiple factors may cause canker sores, including injury to the mouth, acidic or spicy foods, vitamin deficiencies, hormones, stress, or autoimmune disorders.
Horror at the world's largest solar farm days after it opens as it is revealed panels are SCORCHING birds that fly over them. 1  The Ivanpah Solar Electric Generating System, the world's largest solar plant of its kind, recently switched on. 2  The plants is located on five square miles of the Mojave Desert, near the California / Nevada border.
Largest solar plant in the world opens in US as industry grows The plant, in the Mojave Desert near the California-Nevada border, can power 140,000 homes February 13, 2014 9:30PM ET