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.
Also called the Jiuquan Wind Power Base, this is a group of large wind farms under construction in western Gansu province in China. It has a capacity of over 5,000 MW of power, with a goal of 20,000 MW by 2020. When fully completed the entire project may become the worldâs biggest collective wind farm.