After showing more journalists around its solar-powered North Carolina data center (where it is building a third solar farm), Apple says that its new focus for renewable energy is its supply chain. The Guardian reports that the sapphire factory in Arizona forms part of this initiative.

The company is also moving to install solar and geothermal power at a plant in Mesa, Arizona that has been manufacturing sapphire glass. Apple would not directly comment on the Arizona factory but the state’s governor, Jan Brewer, has publicly praised the company’s decision to relocate there and to use solar and geothermal in manufacturing.

Apple’s VP of environmental initiatives Lisa Jackson said that the company is conscious that its supply chain cannot claim the same green credentials as Apple itself …  expand full story