
Yesterday afternoon I spoke to Tod Arbogast, Dell’s Director of Sustainable Business. Our conversation turned to the issue of whether or not a culture which consumes PCs at the rate that we do can ever really be sustainable. In other words, as I put it to Tod – 100 years from now, how on earth are we going to continue manufacturing computers (just as an example) for all the billions of people who are going to be using them?
Tod’s answer was that we will reach a point where we can capture the materials from the old computers and recycle them to build new computers. He pointed out that the historical trend is for commodities to become more valuable over time, and eventually the recycled commodities will become very valuable as well, so valuable that everyone will recover the materials as efficiently as possible. Recycling won’t just be a goodwill gesture, it will be business-as-usual.
I certainly believe that recycling will be a big part of the answer, and I likewise applaud companies such as Dell that have make such a strong effort to promote recycling throughout their products’ life cycle (see here for more on that). But I think it’s more likely that, no matter how efficient our recycling becomes, we will still need to mine new materials to make new computers. I have yet to be convinced that we can truly close the loop.
Tod and I also talked about the idea of turning things like computers into (to quote a term coined by Dr. Saul Griffith at the recent Greener Gadgets conference) “heirloom products” – products meant to last decades rather than simply years. Tod pointed out that, while he’d love to make a computer that will last 50 years, the reality is that computers continue to get faster and more powerful. We often upgrade, not because our old computer broke, but because we can do more things with the new one.
He was also quick to point out that newer computers often consume less energy. A Dell desktop today, he said, consumes five times less energy than its counterpart five, ten years ago. Personally, I think that in the 100-years-from-now scenario, we won’t be making efficiency gains that will warrant mining more metals, ceramics and plastics (you don’t mine plastics, but you get the idea), but I concede that in 2009 the amount of energy saved could rival the amount of energy embodied.
So the question is – what do you think? Do you think we’re going to keep building computers and other electronic devices until we’ve tapped the Earth dry? Do you think that day will never come? Or do you think that, with proper incentives and careful planning we can build a recycling system that makes our consumption of stuff truly sustainable?
Image via Southeast Recycled Fiber

written by Lucas Jordan, April 02, 2009
Maybe only elliptically related to the article, but it does seem like computing is 'good', even if computers are 'bad.'
written by Twist9, April 02, 2009
written by Fred, April 02, 2009
We'll come up with a way to make all the digital switches optical, to where a zillion will fit on the head of a pin, and my big screen will be soon be a mere projection on the wall or become a tiny eyepiece "heads-up display" - or something. And my solar baseball cap will power it.
The main point to remember is this - we began the process of decarbonizing our economy several centuries ago, without any government direction or intervention, and we'll continue to do so, as fast as it's economically possible to do so.
Likewise, we've been squeezing much more performance and efficiency from all kinds of materials, and every new technology adds to those gains - that won't stop either, if we each have the freedom to continue experimenting.
Free people in free markets have made all this possible. The whole world benefits when all the people like Steve Jobs and Dean Kamen and Gordon Murray are free to keep dreaming and inventing - and helping us grow comfy and healthy and rich.
We just need to make sure we don't 'kill the goose that lays the golden eggs', in our haste to spread the wealth around.
End of sermon.
written by Magnulus, April 02, 2009
Ten years ago, computers were not nearly as good at power saving as they are today. Most of the time, we're not using NEARLY all of those 400 watts. The max amount of watts may have increased, but so has the difference between idle and full power.
written by russ, April 02, 2009
Kyle was correct. We may have learned how to make a computer power down more efficiently but when they operate they do suck more juice.
To Twist9:
Do you really prefer to leave all your data, photos etc on a mainframe for big brother to baby sit?
written by Brad, April 02, 2009
By aluminum industry measurements (disclaimer: I work for Alcoa) something like 75% of the aluminum ever made, since 1888, is still around, doing useful work in all kinds of things. This is because it is a high-value material, both in terms of the money (energy) used to make it from scratch and in terms of the value it adds to electronic gear -- thermal properties, durability, portability, eye appeal, etc. Plus the ease with which you can recycle it.
So with that kind of value, aluminum gets recycled, naturally. Even beverage cans get recycled, as much as 90% in countries like Japan and Brazil. In the US, not so much, but that's another topic.
written by Twist9, April 02, 2009
(also thousands of people do it already with "remote desktop" hosting, and they don't seem to have too many problems with peeking eyes)
written by Carl, April 02, 2009
Unfortunately, we don't measure the energy cost of software and bad web site design. New bloatware (100X larger 10X slower) and bad web site design (web stunts 100X slower) is a major cause of computer obsolescence.
written by russ, April 02, 2009
Anytime I buy anything on line it is with a 'one time' ecard. I do use cards at merchants in person though which I guess is not too different.
Being an old guy I much prefer to control my own destiny. I am not a fan of centralization at all.
Depending on where data is stored makes a difference as well. Having worked there for 15 years I know very well that there are no secrets in India.
Anytime you sat in a meeting to discuss a competitor you had their internal documents in front of you. Why guess when it is not necessary.
written by EV, April 02, 2009
Tod pointed out that, while he’d love to make a computer that will last 50 years, the reality is that computers continue to get faster and more powerful. We often upgrade, not because our old computer broke, but because we can do more things with the new one.
Told you so (Again).
Re: Twist9, russ
It is not necessary for a mainframe to exist outside the home. It is at the point where a household could have a 'mainframe' in the basement (probably about as large as a microwave) and the house could have terminals throughout the house. It may even be possible to have them wireless at some point (I know the difficulties, I merely say possible). This would allow for both the mainframe to come back and for privacy to be maintained.
One thing I notice is EcoGeek always forgets non-earth sources of materials. If we moved one of several known nickle-iron asteroids into orbit, we would have access to more iron that has been mined in the past 2,000 years and could stop mining for iron. The same thing applies to other elements. Getting it down to the surface of the earth safely, that is another mater.
written by Paul, April 03, 2009
written by Twist9, April 04, 2009
The reason Ecogeek does not mention extra-terrestrial resources is that they are COMPLETELY infeasible to even think about harvesting within a thousand years. If you haven't noticed, Ecogeek focuses on current events and progress, not sci-fi speculation.
written by Russ, April 04, 2009
written by Tom, April 04, 2009
So instead of focusing on the tiny bit of how much power does it take to run them, we should also look at how much power we did not have to use because we did not go anywhere to do what we wanted to do.
I have full faith in the future, as I see it, for every windmill and every solarcell comming out of a factory somewhere in the world, there will be need for less and less of the fossile fuel/coal that clogs our air today, so lets keep building more and more of those please, yes it will take time to replace it all, but we will get there if we want to.
By the way, I still use my 10 year old keyboard, why replace it, it still works, so some parts of computers can actually last for a long time, the real sinners here is the laptops, not upgradable, not repairable and so on, lets get more of the desktop ( under desk cabinet ) style computers, where you can replace small parts when newer ones come to market ( less transport, less weight, less materials used, less packeting )
So its a much more complicated formula than just how much power does my computer use....
written by EV, April 04, 2009
The calculations are trivial, especially when dealing with a slow moving rock and when you can take your time. The problem with bringing things down to the surface of the earth is much easier than getting them out of earth's gravity well. Nor would it be a planetary death wish. We would not have to bring it immediately into LEO, we could start with the Lagrange Points and slowly move it down from there. A Space Elevator, which is probably 50 years off at most, would vastly reduce the energy required to bring the material down from orbit. From there, it is probably 5 years at most until we start mining the asteroids.
“Those who say it can't be done are usually interrupted by others doing it.”
written by Yvelle, April 06, 2009
written by dixza, April 09, 2009
As long as we still mine and extract resources from the crust of the earth there is an impact on the environment thus can not be called sustainable.
The XPrice founder was already talking about platinum space hunting last year! if you add that to the iron, nickel,etc hunt that will be economically feasible!
What is the biggest environmental impact of computers?
Which parts ca we substitute with benign materials?
Can we use nature to absorb current solar energy to grow and shape the materials we need?
Somebody said to "spread the wealth around" At the end of the day what is wealth? May be we already have it but we impoverish our selves:8?
I wish you all Peace, Love and Light, what else do we need? :D ahhahai
written by David תיקון מחשבי×Â, April 19, 2009
David.
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As for the question. It is totally bullshit. In 100 years from now, computers will be unrecognisable in construction and most likely will use organic compounds which are 'grown' through biological processes.
The Dell comment about today's computers using five times less energy than their counterparts five to ten years ago is not very true at all and in fact quite dishonest. It is true that due to decreasing size of the individual silicon gates, each gate's power consumption is less, however the complexity has increased so over-all there is a net increase in power. Ten years ago, most desktop PCs had 250-300watt rated power supplies, today the average desktop PC has a power supply rated at 400-600watts.