Travis Daub at "Foreign Policy Passport" believes "Microsoft could save 45 million tons of CO2 emissions with a few lines of computer code"
Most machines already possess software that allows them to run more efficiently—to "sleep" in a low-power mode when not in use—but few people enable this feature.
So, Microsoft should issue a software upgrade to every computer running Microsoft Windows worldwide. The upgrade would adjust the machine's energy-saving settings for maximum efficiency.
Microsoft estimates that it costs $55 to $70 per year for an average business to allow one computer to sit idle. Multiply that times 100 million computers and you realize that the world spends $5 to $7 billion* dollars every year powering inactive computers. Shifting 100 million computers into low-power sleep mode for 12 hours per day could easily cut worldwide C02 production by 45 million tons per year. That is equivalent to wiping away a year's worth of CO2 produced by every household and industry in a country the size of Ireland. Dozens of power plants would no longer be needed.
...Dells are US$299. The New York Times ran a story on a man who threw away his PC because it was infested with spyware. Now, I know enough about journalism to know that anecdotal evidence does not mean it's time for widespread panic, but this is a major issue. PCs are cheap. They're full of PCBs and other dirty grossness. They're full of spyware. Therefore, you're damned if you throw it away and you're damned if you don't.