The digital age may have brought the world to our computer.But our computers are making a significant impact on the world.A medium sized server has a similar carbon footprint to an SUV achieving 15 miles to the gallon.A thousand PCs left on all day without any power save settings will consume up to £70,000 worth of electricity per year.In 1980 before the introduction of computers, world office paper consumption averaged seventy million tonnes a year.By 1997 it had more than doubled to almost 150 million tonnes.© Independent Television News Limited 2007. All rights reserved.