Apple will be celebrating Earth Day 2014 next Tuesday, April 22 throughout its various retail locations and at its main campus, reports 9to5Mac. The company will color its logos in green for the occasion, as employees will wear special shirts with an event planned at Apple's headquarters at 1 Infinite Loop in Cupertino, California. Apple last celebrated Earth Day in 2006 by holding a free computer takeback program in honor of the event. Apple has remained active in its environment efforts throughout the past few years, which incl