Point: Make sustainability decisions at the start of new product development.

Story: “Seventy-five to 90 percent of a product’s environmental impact is determined in the product development stage,” says Kevin Myette, director of product and supply chain sustainability at outdoor gear and clothing retailer REI (Recreational Equipment Inc.).

Given that fact, it’s extremely important for product designers to have access to information about the sustainability of materials when making decisions about which materials to use for new products.

For example, which do you think is environmentally more damaging: wool or polyester? Intuition might point you to rank wool as the more sustainable product, because it is natural. But, the processing of wool uses chemical washes, and wool as a material in apparel requires much more washing and energy use after purchase. Thus, although polyester uses more energy during manufacture, its lifetime energy usage is lower. Even better, polyester can be recycled. Nike used this information to design uniforms made from recycled polyester for the 2012 European Cup soccer championships, thus earning them high marks on sustainability.

A tool that’s helping the apparel industry with this problem is called the Higg Index, which lets manufacturers and brands score the environmental impacts of their garments across the apparel life cycle (materials, manufacturing, packaging, transportation, use, and end-of-life).

Getting industry-wide agreement on the metrics has been key. “As our CEO says, ‘sustainability is a team sport,'” Myette told me. “We’ve been working collaboratively with partners and competitors alike, pre-competitive, to develop the language and metrics of sustainability.”

Internally, to help its product designers make the right choices, REI implemented a product lifecycle management system that gives its designers a dashboard view of how materials rank across the lifecycle for sustainability.

Myette is encouraging REI’s suppliers to use the system, as well using a dyeing process that requires no water and using patterns that minimize scrap waste. “Five percent of our landfills are just textiles, apparel,” Myette says. Avoiding scrap material and encouraging recycling of apparel is vital for reducing this waste. Few consumers know that it takes 10 times more energy to produce textiles than to produce glass. Greater awareness could spur consumers to demand retailers offer recycling of their synthetic fabrics.

Action

• Think about sustainability before you design the product, not just after you have the product and want the best suppliers
• Consider the entire lifecycle of the product:

— your suppliers’ footprint for the raw materials
— your footprint of your production processes (and customer services, too)
— your customers’ footprint when using your product
— the recyclability/reusability of the end-of-life product (and any scrap produced along the way)

• See if your industry has something like the Higg Index.  And if not, help create one!
• Think holistically — perhaps something that seems unsustainable (e.g., fossil-fuel-derived polyester) might be best if it enables greater sustainability in other parts of the system (e.g., washing, dying, end-of-life recyclining)
• Finally, keep looking for improvements, such as bacteria that can make biodegradable polyester

Sources:

Personal interview with Kevin Myette

Higg Index: http://www.apparelcoalition.org/higgindex/

Bacteria: http://www.asknature.org/strategy/aafff01c6748d9169047522c11c0280a

Note: this post originally appeared in the Huffington Post: Mitigating Environmental Impact of Apparel: REI http://www.huffingtonpost.com/andrea-meyer/mitigating-environmental-impact-apparel_b_2253103.html?utm_hp_ref=tw

Point: If you’re stuck on how to solve a problem, see if nature has already solved that problem.

Story: Nature has already solved many challenges; the best solutions have survived and improved through evolution.

Consider this example: termite mounds such as those of the Macrotermes michaelseni exist in African environments where the external temperature varies from 35°F at night to 104°F during the day. The living areas inside the termite mounds, however, maintain a constant internal temperature within one degree of 87 °F, day and night.  Millions of years of evolution perfected the termites’ construction habits so that their mounds’ passive solar design and networks of air conduits create a self-cooling ventilation system.

How can humans put this termite-inspired solution to use? Architect Mick Pearce collaborated with engineers at Arup Associates to design a mid-rise building in Harare, Zimbabwe, called Eastgate, that has no air-conditioning, yet stays cool. The Eastgate Center is the largest office and shopping complex in Zimbabwe, but it uses only only 10% of the energy of a conventional building its size. Not only is this good for the environment, but it lowers costs for building occupants. Eastgate occupants pay 20% lower rents than do occupants in nearby buildings pay.

How did Pearce design this building? He looked a 3D digital scans of termite mounds, manipulating them in computer models to understand how the tunnel system works to exchange gases and regulate temperature and humidity. It turns out that the termite mounds operate on a system of convection currents that draw air at the lower part of the mound down to the bottom and then exhaust heated air to the top. The termites open and close ducts by digging new vents and plugging up old ones.  At Eastgate, Pearce installed electronically-controlled fans on the first floor to suck in outside air and then push it up along a central spine, venting it through chimneys at the top.

Action

• If you have a problem to solve, think about the plants and animals that may have had the similar problem. Look to sites like AskNature.org or the Biomimicry 3.8 Institute
• Study nature for inspirations and ideas that you can adapt
• If you don’t have time to do this yourself, consider holding an innovation contest with InnoCentive, NineSigma, or Yet2.com to solicit ideas from biologists, oceanographers, etc. who could apply knowledge from the biological world to tackle your problem.

Sources:

Janine Beyrus, Biomimicry: Innovation Inspired by Nature, chapter 1

Biomimicry 3.8 Institute

Abigail Doan, Green Building in Zimbabwe Modeled After Termite Mounds | Inhabitat – Sustainable Design Innovation, Eco Architecture, Green Building