Climate change in mind, Wall Street to start trading a new commodity: Water

Water supplies have been tight for years in California, and large parts of Asia and Africa also face the potential of scarcity as temperatures rise

If the record heat and wildfires ravaging California weren’t a clear enough sign that the climate is changing, then consider this: Wall Street is about to start trading futures contracts on the state’s water supply.

The contracts are the first of their kind in the U.S. and are being created by CME Group Inc., the world’s largest futures exchange. They are intended, CME says, to both allow California’s big water consumers -- like almond farms and municipalities -- to hedge against surging prices and can act as a benchmark that signals how acute water scarcity is becoming in the state