By Graeme Murray Spain’s drought-ridden region Catalonia is poised to impose water limitations on tourists during its dry season. The Catalonian government says a cap of 100 litres (26 gallons) of water a day will be imposed on each tourist in hotels and will be enforced if domestic consumption is not reduced. This is when use exceeds limits for three consecutive months during the ongoing “drought emergency”. Barcelona is Spain’s second-largest city and uses 160 litres of water per resident per day. This figure is well below the current 200 litres restriction, according to Catalonia’s water ag…