Microsoft and Nintendo have been given the lowest scores for their environmental performance in the latest edition of Greenpeace's "guide to greener electronics"Greenpeace's "guide to greener electronics". Electronics firms are ranked according to their policies on chemicals, waste and energy. Microsoft is criticised for not supporting improvements proposed as part of a revision of the RoHS directive on toxic substances in electronic and electrical equipment, such as a methodology for further restrictions and a ban on brominated flame retardants (BFRs) and PVC. The company has committed to removing PVC and BFRs from its hardware products by 2010 and phthalates by the end of the year. However, it must not sell products containing BFRs in printed circuit boards before its score can improve, Greenpeace said on Thursday. Nintendo remained in last place, mainly because of its performance on waste and emissions. The firm still has no policy on individual producer responsibility, says Greenpeace. Its greenhouse gas emissions increased by 1.5% in 2007 despite a commitment to reduce them. Mobile phone manufacturer Nokia remained at the top, earning praise for its take-back program and the elimination of BFRs and PVC from its phones. Sony came in second, followed by Toshiba. Apple rose from ninth place to fifth after it became the first PC manufacturer to sell BFRs- and PVC-free products. Last month, Greenpeace issued an annual report on electronics showing the EU's 2002 WEEE directive on electronics waste is poorly implemented in half of EU member states. The report also shows electronic waste exports to non-OECD countries are still happening despite an EU ban. Follow Up: Greenpeace press release and Guide to Greener Electronics, plus Switching on to Green Electronics report.