It is an exceptionally rainy day in the small town of Pozoblanco, 70 kilometres north of Córdoba city in Andalucía. But 50 centimetres of rain in one February weekend is still a drop in the ocean of need. Most of the residents gather around cisterns of water in the morning and after lunch. This is where the life of the Spanish town centres now. Along Holanda Street, more and more cars pull up with dozens of empty plastic containers stuffed in their boots. The water tanker doesn’t come on Sundays so people need to stock up. If they don’t, they can’t brush their teeth or even cook dinner. The la…