The leaf on the Apple symbol is tinted green at the Apple flagship store on 5th Ave in New York April 22, 2014. Employees and signage have been themed green to mark Earth Day.

An Apple store Genius (R) assists a customer at the Apple flagship store on 5th Ave in New York April 22, 2014. Apple employees are wearing green for Earth Day.

Employees wear green shirts near Apple\'s familiar logo displayed with a green leaf at the Apple Store timed to coincide with Tuesday\'s annual celebration of Earth Day in Sydney, Tuesday, April 22, 2014. Apple is offering free recycling of all its used products and vowing to power all of its stores, offices and data centers with renewable energy to reduce the pollution caused by its devices and online services.