water that rises there. It was the world's only industrial producer of geothermal electricity until 1958, when New Zealand built a plant of its own in Wairakei. In recent years concerns have been expressed about the sustainability of its steam supply, as a 30% drop in steam pressure levels has been recorded from the maximum levels of the 1950s. References Sources External links "Steaming Forward", Time magazine, June 16, 2003 Frazioni of the Province of Pisa Geological type localities Geothermal power stations in Italy Geysers of Italy Hot springs of Italy Volcanic crater lakes Volcanoes of Italy