What does energy and pollution have to do with computers? Are you kidding me?
First, you need power to run a computer. Sure, your single home desktop and one laptop might not be much - but if even only 1/3 the US population runs it your already at 100 million computers and 100 million laptops. Many of those browse the internet, which requires server farms that run 24/7. Add to that the data centers and university computer labs, and you begin to realize just how much energy computers use.
Furthermore, when you have data centers and server farms running systems running 24/7, the environment must be strictly controlled. As any home system builder knows, heat is always a factor - and where do we typically vent heat from computer systems? Yup, we vent it into a room, which then in production environments must then be air conditioned.
How many times have you upgraded a component or monitor, and what do you do with those unwanted component and computers? Do you dump it in the trash (which in many areas of the US is illegal) or properly recycle it? Read up on the e-waste that the US exports - there are many toxic components within electronic components when discarded. When this waste is buried in landfills, it leads to the toxic compounds leeching into soils and ground water supplies. This isn't even touching on the impacts of manufacturing (which the article on flat panels was trying to point out).
If you do a bit of digging, you will see that the electronics and computer industry is notorious for its energy consumption and pollution. It is also known as an industry that doesn't seem to be concerned about its ecological footprint. The general reaction of Tom's readers each time an article about energy or pollution comes up is an excellent example of how unconcerned and detached those in the field really are.
What does energy and pollution have to do with computers? Are you kidding me? It has everything to do with computers.
Please Tom's Hardware, keep bringing up these issues (and maybe explain why they are appropriate to bring up in a computer forum - the average reader seems to need to have the justification explained to them).
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I will not go into length here discussion potential solutions, but make a few quick points. First, there is no such thing as clean or non-polluting energy. No matter what you do, there will be an environmental impact. Second, when you look at energy solutions, be sure to look at all the impacts and costs over the entire period of production (called LCA - life cycle analysis). I think wind and solar are key solutions as they use a one-time disruption of the environment for mining and manufacturing, have limited impact over their production lifespan, require no further mining or feedstock transportation for production, and have minimal water impact (basically needed for cleaning, not production). There are impacts, but they are significantly less than the fossil fuel alternatives. I, for one, would like to have a life time of power for my computer systems - and preferably one with minimal impacts and long term sustainability (measured in thousands of years, not hundreds).