Employees use bicycles for transportation at the Solvay SA chemical plant in Antwerp, Belgium, on Thursday, April 22, 2010. Chlorine is the main product produced at Solvay's Antwerp facility.  Solvay SA is the world's largest supplier of Soda Ash or Sodium Carbonate and is also a major producer of caustic soda, hydrogen peroxide, chlorine and fluorinated products. (Photo © Jock Fistick)
{}