As an author for EcoEvaluator.com, I have the opportunity to work from home most of the time. I recently upgraded my old desktop computer to a laptop. I also replaced my seriously outdated monitor with a new ENERGY STAR LED monitor. I decided to run a little experiment on the efficiency of my new equipment vs. the old stuff using a Kilowatt meter. I was amazed to discover a 70% decrease in energy usage. This is mostly due to the monitor replacement. Most laptops, though, are designed to be energy efficient because they have to run on batteries.
So my advice is to replace that old monitor with an LED or LCD screen, and please recycle that old monitor. This link will help you find places to recycle e-waste in your area: http://www.epa.gov/osw/conserve/materials/ecycling/donate.htm. We also offer a number of informational articles to learn more about the importance of recycling e-waste .