The big downgrade for Apple to sixth spot has been blamed on a "lack of transparency," toxic chemical use namely "GHG [greenhouse gas] emission issues and post-consumer recycled plastic use."
Greenpeace claims that they have taken Apple to task for several other problems that the Company is refusing to address.
"Apple receives half marks in Sustainable Operations. Apple does not score high on the e-waste criteria, losing points for lacking a robust take-back programme in India," Greenpeace writes.
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Together with HP, Apple is a top scorer for policies and practices regarding conflict minerals, but fails in developing a paper procurement policy banning suppliers involved in deforestation and illegal logging."
Wipro, an Indian electronics manufacturer, took the crown of greenest gadget maker in the world.
Some of the notable companies below Apple include Samsung (7th), Sony (8th), Lenovo (9th), Toshiba (15th), and Research in Motion (16th).
A 2010 poll from gadget site Retrevo revealed that 60 percent of consumers don't care about the environmental impact of their purchase.