Greenpeace has once again highlighted Nintendo as the most environmentally unfriendly of all its annually surveyed electronics companies.
This year's Greenpeace Guide to Greener Electronics study scored the company just 1.4 out of 10 for its chemical, e-waste and energy policies, the lowest of the 18 companies included.
The Japanese manufacturer scored zero on e-waste and on its commitment to reduce greenhouse gas emissions due to a second year of increases, despite its pledge to cut them.
It did pick up some plus points for its chemical policies - for having PVC-free internal wiring in its consoles, banning phthalates and monitoring the use of other harmful chemicals.
The company has said it will eventually eliminate its use of PVC, however hasn't set a timeline for its phase-out.
Points were also gained for the low power Nintendo DSi AC adaptor and for disclosing CO2 emissions from its own operations, but they weren't enough to lift the company from last place, where it has remained for several years.
Microsoft fared little better in the guide, with a score of 2.4 points, which put it just one place above Nintendo at the bottom.
Of the three console makers, it was Sony that revealed itself as the most green, gaining one place to 7th in the chart with a score of 5.1.
Points were awarded for Sony's 17 per cent reduction in greenhouse gases from 2000-2008, with renewable energy now accounting for eight per cent of that purchased globally by the company, and it was also praised for its use of recycled plastics in its products.
Nokia, Sony Ericsson and Toshiba led the chart, while Apple was applauded for its rapid response to completely eliminating chemicals from its computer systems.
"It's time for a little less conversation and a lot more action on removing toxic chemicals," said Greenpeace campaigner Casey Harrell. "Apple, Sony Ericsson and Nokia are winning this game and HP is catching up, but the lack of action from other companies is ensuring that customers and the environment are still losing out."