Friday, 5 August 2011

What Do You Do To Support Green Computing?

What is Green Computing?

The phrase "green computing" may conjure up some humorous images if you're not familiar with the term. Normally, we think of gas guzzling cars, factories, pesticides, and such when considering environmental concerns. So what does the term "green" signify in the context of everyday computing?
In a world where computers are everywhere, and environmental concerns are growing by the day, we need to consider how we can build, use and dispose of computers in a manner that's conducive to the health of the environment. That includes reducing the use of lead and other hazardous materials in manufacturing, being careful about energy consumption and paper waste by computer users, and concern for salvage or recycling of old computers. Millions of computers are dumped into landfills each year. That equates to a lot of lead, cadmium, mercury and brominated flame retardants, which will contaminate both water and air.
You may not be in the business of manufacturing computers, but as a user there are some steps you can take to reduce waste and energy consumption.
  • Use LCD monitors instead of CRT monitors, which consume a lot more electricity. LCD monitors uses three times less when active, and ten times less energy when in sleep mode.
  • Use laptops instead of desktop computers, also cuts down on energy usage. The Everex StepNote NC1501 is touted as the world's most energy efficient notebook computer, using only 12W peak power. By comparison, a desktop model uses 200-400 watts.
  • If a laptop is not feasible, look for the Energy Star label when purchasing a computer. New US government regulations make this more important than it's been for the past fifteen years.
  • Disable your screen saver. Burn-in is not an issue with modern monitors, and screen savers can prevent your monitor and computer from going into idle/sleep mode.
  • Enable the power management features on your computer, to turn off components such as the monitor, fans and hard drive when idle. On Windows, go to Control Panel / Power Options. On OS X, go to System Preferences / Energy Saver.
  • Switch off the monitor, printer, scanner and other peripherals when not in use.
Windows Power Schemes Perhaps you've never considered the potential of such small steps, but the global impact can be large if computers users begin to adopt these simple steps. Of course, there are some tradeoffs... LCD monitors and laptops are more expensive than CRT monitors and desktop computers currently. Energy savings do offset some of that extra cost, especially over the course of several years. And if consumers begin a trend towards buying greener computers, economy of scale should result in manufacturing prices trending lower as well.

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