Getting to water positive To meet our commitment to being water positive by 2030, we will reduce our water footprint across our direct operations, while replenishing and increasing water access in water- stressed regions where we work. Reducing our water footprint We are taking new approaches to water collection, treatment, reuse, and reduction at our campuses and datacenters across the globe. This includes efficiency measures as well as fit-for-purpose water usage design—we are focused on using the right type of water in the right context from campus to datacenters to device manufacturing. Key efforts include the following. Using less, reusing more, and recycling water across our datacenters Microsoft is using the Smart Water Navigator , which we developed with Ecolab, in our datacenters to prioritize and manage incoming water quality sources like recycled water. In San Antonio, Texas, we have significantly reduced the datacenter’s potable water usage, which will now be used to supply water to homes, providing economic as well as environmental benefits. We deployed sensors in our Quincy, Washington datacenter location, where we’re using the data on real-time water quality to drive operational insights and adjustments to maintenance and water chemistry. Across our operations, we’re testing new techniques, like raising supply air temperatures and harvesting water from our rooftops, to further reduce water consumption. Using the right type of water in the right context in datacenters. Keeping datacenters cool using air Across our global datacenter fleet, outside air is our primary method of cooling for an average of nine months of the year. External temperatures and humidity play a key role in determining when additional cooling is required—and when required, we utilize an adiabatic cooling system to reduce air temperature by evaporating water in its presence. Adiabatic cooling, along with higher temperature operations, significantly reduces power and water usage when comparing to mechanical water-based cooling systems. At our new datacenter region in Arizona, which opened in June 2020, we use zero water for cooling for more than half the year, taking advantage of adiabatic cooling. We are also partnering with First Solar to provide solar energy rather than traditional electricity generation, which will reduce power plant cooling water. Zero water At our new datacenter region in Arizona, we use zero water for cooling for more than half the year, taking advantage of adiabatic cooling. 48