Let’s say you want to create a case for climate change. One of the ways to do this is creating floods during a hurricane.
Amongst countries without frequent floods, flood control is achieved through the use of a network of canals, locks, and dams that connect rivers with each other. This is done in such a way that when one river overflows, the locks and dams in canals are opened in such a way that, the excess water flows into another river.
So if one needs to create an artificial flood all one needs to do is to mismanage this piece of infrastructure. Of course, the mismanagement has to be done in a statistical rather than a deterministic manner so that detection is hard. SCADA system worms like Stuxnet seem to be the ideal means to achieve this.