As data center demand soars, Amazon expands the use of wastewater to cool its U.S. data centers and curb its use of drinking water.

HARRISBURG, Pa. (AP) — Amazon said Monday that it will spend $20 billion on two data center complexes in Pennsylvania, including one it is building alongside a nuclear power plant that has drawn federal scrutiny over an arrangement to essentially plug right into the power plant.

Campaigners are opposing a hyperscale data center campus planned for Bedfordshire, UK, over concerns about its impact on the water supply.