From NYT article on "The Future is Drying UP"
“A crisis is an interesting thing,” he said. In his view, a crisis is a point in a story, a moment in a narrative, that presents an opportunity for characters to think their way through a problem. A catastrophe, on the other hand, is something different: it is one of several possible outcomes that follow from a crisis. “We’re at the point of crisis on the Colorado,” Pulwarty concluded. “And it’s at this point that we decide, O.K., which way are we going to go?”