Anyone who has ever spent the night huddled on a rooftop surrounded by rising flood waters knows it’s terrifying. Alejandro Zelada, a survivor of massive floods in Buenos Aires in 2013, describes the experience. “It was like a wave, a tsunami, and all the furniture started to float”, said Zelada. “We only lost our belongings, but others lost their lives.”
The Argentine capital is just one of hundreds of cities around the world that face massive devastation caused by floods every year. One of....