Internet giants go green

Search engine giant Google and US semiconductor firm Intel have thrown their weight behind a massive scheme to reduce carbon dioxide emissions.

The ambitious plan sets out an industry-wide target to cut the amount of energy computers consume by 2010.

The scheme is expected to cut emissions by 54 million tonnes a year - equal to 11 million cars or 20 coal-fired power plants, company officials say.

Hewlett-Packard, Dell and Microsoft have all signed up to the green campaign.