A survey has revealed that consumers would be prepared to pay higher prices for their PCs if the systems were more environmentally friendly.

They will part with up to an extra £108 for a PC that contains fewer chemicals. Consumers also want manufacturers to shoulder more responsibility for disposing of old machines.

The study across nine nations was conducted by Ipsos-Mori for Greenpeace. It found some interesting regional anomalies – in the UK, consumers will only part with £64 extra for green machines, while in China they are willing to spend up to £108.

Recent reports have shown that mountains of toxic waste created in making PCs are building up in India and China. Around 30 million computers are trashed each year in the US.

The BBC reports that 70 percent of dangerous heavy metals produced each year, such as lead and mercury, can be traced to PC manufacturing.

"We are pressing leading electronic companies for change to turn back the toxic tide of e-waste," Greenpeace explains.

This story first appeared on Macworld.co.uk.