What are we talking about?
WP has been developed for agriculture. Can we extend the use of WP to activities that relate to gathering ( as opposite to agriculture) such as wild game hunting, collecting wild fruits or cereals or fishing in natural water bodies or herding in unmanaged rangelands ?
A clear definition of WP is needed. What is the Water consumed? Do we agree that it is the water made unavailable for other uses? If we go to fisheries ( inland or marine) how do we define the water consumption?