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Category Archives: debates in sustainable design

The Sharing economy – is it green?

The Sharing economy – is it green?

Intuitively the sharing economy seems greener than the conventional economy. After all, it is about using existing capacity more efficiently–rather than buying new to own (and then having to discard and update and so forth). But does the sharing economy have a “rebound” effect?

pumpipumpe-sharing-stickers-1In Switerland, stickers on your mailbox show what you’re willing to share with neighbors.

In energy efficiency the rebound effect occurs when people who save money through energy efficiency use the money to consume even more energy than they would have otherwise (see this post for more). For example, if John gets a super-efficient car, he may use the money he saves on an extra vacation flight.

Could the same happen when people earn extra off Airbnb (house/room sharing) or Uber (car sharing) and the like?

This article in  suggests that reduced consumption from room share and ride share services might be seen in reduced fuel consumption or reduced hotel construction. But the article says we’re not seeing that yet—although the numbers in the article do not appear to draw comparisons for areas where the sharing services are most mature.

I’ve often thought “sharing” is the wrong term for this phenomenon, since sharing typically doesn’t involve paying for services. It seems more accurate to call it the “rental economy” or the “hire economy.” However, any activity that builds social capital, especially in cities, seems worthwhile.

Perhaps we need to think about the commercial sharing economy against the social sharing economy. Consider this project in Switzerland, where residents can use stickers on their mailboxes to indicate the types of things they’re willing to share with neighbors.

I’m worried about the real value of the social sharing economy being eclipsed or even squeezed out by the commercial sharing economy. What do you think?

Can 3D Printing be Sustainable?

Despite all the wonderous news about 3D printing — artificial body parts, food, toys, buildings! — there is an environmental underside to it that isn’t as widely publicized. One recent article (in points out heavy metal (antimony) content in 3D print filament. Another article (in TechRepublic) gives us “10 things to watch” including energyContinue Reading

light-bulb flashlights, chair-helmuts—multifunctional products

In this post we return to the theme of multi-functionality as a technique for sustainable design. I’ve looked at this idea of doing more with less before in terms of products that behave as structures (and vice versa) and in terms of other approaches to getting more function out of our designs. Today we’ve gotContinue Reading



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