Water reuse is quickly becoming a necessity rather than an option for nations wishing to strengthen their water resource management efforts around the world. By processing municipal or industrial wastewater and producing clean water for irrigation, process and supplementing drinking water purposes, water reuse can provide an insurance and robust supply to protect against water scarcity. Many regions are now looking to wastewater reuse over large-scale desalination as a solution to drought-induced water scarcity, with countries such as Spain and China continuing to lead the way. Water reuse capacity has almost doubled since 2010 – increasing to 118 million cubic meters of water produced annually.