Tortoise's TBLU ETF in The New York Times

As Fresh Water Grows Scarcer, It Could Become a Good Investment

Water is easy to take for granted. It falls from the sky, and, though it’s vital, we sometimes treat it as if it’s worthless. How often have you seen sprinklers running in the rain?
Yet the prospect of shortages in the years ahead could make water a precious commodity. That represents an opportunity for investors.
A small group of traditional mutual funds and exchange-traded funds already invest in it, mainly in companies that contribute to the delivery, testing and cleaning of potable water. Those companies stand to grow as governments around the globe strive to stem the expected water shortfalls.
Read more here: https://www.nytimes.com/2019/07/11/business/fresh-water-shortage-invest.html