Now days, what you do is scrutinized to the hilt and if you are a big techie firm then you really need to be aware of your impact on the environment. Although the Wii is claimed to be more energy efficient than the Xbox or PS3, the parent company Nintendo ranks as the 'least green tech firm'. According to the quarterly Greenpeace Guide to Greener Electronics, that ranks 18 electronics firms by how green their production processes and products are; Nintendo scored really low. In the latest guide most firms have seen their ranking plummet as the charity introduced new, stricter guidelines for evaluating companies. In their defense Nintendo said it scored low because it had not provided data for the survey.

"Greenpeace chose to conduct a survey and produce a report, which graded companies upon the voluntary submission of information," the firm said in a statement.

"Nintendo decided not to take part in the survey and were therefore 'ungraded' in the resulting report.

But Greenpeace countered the company's statement and said that since 2007 the company had not responded to queries, hence in the end it had been forced to use information from Nintendo's website.

Greenpeace ranks the top market leaders of the mobile phone, computer, TV and games console markets according to their policies and practices on toxic chemicals and recycling. The new energy guidelines score a company for disclosing their greenhouse gas emissions, their commitment to absolute cuts in their own emissions and support for mandatory global emissions reductions.

In particular, Greenpeace has asked companies to state support for a "strong post Kyoto agreement" on their international websites.

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