Obviously they're not "growing" water. That's just the marketing spin that the company puts on it, which the journalists are using for the title. The author isn

Obviously they're not "growing" water. That's just the marketing spin that the company puts on it, which the journalists are using for the title. The author isn't stupid, like you seem to be assuming ... ? They're just using a name that is more likely to get attention. An article named "company reclaims water from turning tomatoes into ketchup" is a LOT less likely to get attention.