Yes, Hewlett-Packard, Dell and Lenovo have been doing plenty in the area of power management. But all three just got dinged on the latest of Greenpeace's ongoing Guide to Greener Electronics. The link that I've just given you provides very details specifics on why each company has received the company it receives. It's close to 40 pages long.
That's because Greenpeace claims none of them have been as active in the are of toxic chemical phaseout as the environmental giant would like them to see. Specificially, HP has postponed its pledge in 2007 to get rid of PVC plastic and brominated flame retardants by the end of this year.
Greenpeace ranks major gadget makers on a scale of 1 to 10, which 10 being the highest score you can earn. Nokia is the top company on the list, which at 7.5 out of 10. It gets props for its recycling initiatives in particular, although it has a very low recycling rate at just 3 percent of 5 percent of the products it produces. Samsung and Sony Ericsson are creeping up on Nokia, in the second-place and third-place positions.
Of the three PC makers in question, HP finds itself in 14th place, Dell scores better and Lenovo scores near the bottom of the heap. The highest ranking PC maker is Toshiba, which probably burns Apple, which likes to say that it makes the greenest computers on the planet.