Desalination is used worldwide, from Israel to Australia. Here, project engineer Mike Watts watches as saltwater flows into the pre-treatment hall at the Kurnell desalination plant, in Sydney, Australia, in October 2010. The plant, which began to provide drinking water in January 2010, produces about 250 million liters daily. Illustrates DESALINATION (category a) by Darryl Fears 2015, The Washington Post. Moved Thursday, July 9, 2015. (MUST CREDIT: (Bloomberg News photo by Ian Waldie)