An Italian supervolcano which last erupted in 1538 is 'on the brink' of doing so again sparking fears of a global winter, scientists say.
According to research published in the journal, Communications Earth & Environment, the crust of Campi Flegrei is weakening and more prone to rupturing making an "eruption more likely".
Situated near Naples in the south of the country, Campi Flegrei (or Burning Fields, in Greek), is a broad region of supervolcanic calderas - a large depression which forms after a volcano erupts and collapses.
