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.
Datong Solar Power plant in China has the potential to be the largest solar plant in the world once completed. According to government statistics, from July 2016 to January 2017 , Datong generated a total of 870 million watts of electricity, equivalent to more than 120 million watts per month of power generation.