That Venice is in peril is indisputable. That it is ultimately saveable is up for discussion. Now, one company thinks they can make a difference to the floating, sinking city -- with "flying" boats. Swedish company Candela thinks that its electric boats can help fight "moto ondoso" -- the damaging phenomenon of waves bashing against the buildings and sidewalks from the wakes of boats being driven around the city.

Moto ondoso has been tipped by UNESCO as a "macro emergency" facing the fragile lagoon city. The organization says there is a need to "drastically reduce the effects produced by motor boats."