Measuring the cost of corporate water usage

ABSTRACT

We develop a methodology that calculates the impact that organizations have on the environment through their water consumption relating to water stress risk. Using the methodology, we derive estimates for four companies that show how assumptions on the geographic location of the water withdrawal and use of different prices for water across geographies lead to variation in these estimates. We conclude with a framework guiding a user to understand the conditions under which a methodology might lead to over- or underestimation of water costs.(AU)