The latest 'green' electronics ranking has been unveiled by environmental group Greenpeace, the survey addressing the policies of various firms.

Nintendo were ranked the worst of the tech firms on the list, the platform holder reticent to reveal details to the group, although and also came in for criticism.

Nintendo's lack of cooperation was blamed for the firm's low ranking, although both Sony and Microsoft were attacked for their chemicals use.

Microsoft got a 2.4 score from Greenpeace, while Sony got a mid-range 5.1. More on the official report.

By Luke Guttridge