Is Greenpeace's report bogus?

Ars Technica seems to be crying foul over Greenpeace's latest findings regarding Nintendo's eco-conscious actions. Turns out, "Penalty points can be deducted" if Greenpeace sees fit. Why would they deduct points? They're taken "from overall scores if Greenpeace finds a company lying, practicing double standards or other corporate misconduct."

Ars Technica seems to think that Nintendo's score is based entirely on a mission statement via Nintendo's website and less on an in-depth look at the company's practices. So, it's likely that Nintendo isn't as bad on the environment as they've been made out to be.