I was reading a WaPo op-ed on conflict over the water resources of Tibet (yes, I read that sort of thing) and this word jumped out at me: “hydrobehavior,” as in:
By 2030, China is expected to fall short of its water demands by 25 percent. Its increasingly aggressive hydrobehavior is intended to secure its massive water requirements in its northern and western regions.
A Google search shows that the word, in this combined form, has never before been used. I don’t see it showing up in dictionaries any time soon, but it could be useful. One mom to another: “Boy, you should have seen my kids’ increasingly aggressive hydrobehavior in the bath tub last night!”