Individuals, households, businesses and countries that do assessments of water use patterns at different levels have all asked "What is a water footprint?"
Beef Is NOT a Water Hog - 94% of Water Allocated to Beef Production is Natural Rainfall — Sacred Cow
Water Supply Challenges for the Semiconductor Industry - Semiconductor Digest
UN-Water Coordinating the UN's work on water and sanitation, water
Full article: A Holistic and Globally Applicable Indication System for Regional Electric-Energy-Water Security
UN-Water Coordinating the UN's work on water and sanitation, water
The Water Footprint Concept and Water's Grand Environmental Challenges - ScienceDirect
Water Carbon Footprint: Bottled Vs. Tap, Water Use Impact on Carbon Emissions
Assessing the impact of water use in conventional and organic carrot production in Poland
Lettuce a bigger environmental threat than beef? — Jayson Lusk
