Curriculum/DP Design/C2.1 Design for Sustainability

Design for Sustainability | C2.1

Guiding questionHow can design for sustainability ensure we meet our current needs without compromising our future existence?

Sustainability is the part of design where good intentions are least useful. Almost everyone agrees products should do less harm and almost nobody agrees on how to measure it, which is why this topic hands you frameworks instead of opinions. Datschefski's five principles and the Triple Bottom Line exist so that you can make a specific, checkable claim about a product rather than calling it green and hoping nobody asks.

Use them sceptically. A framework is a tool for structuring an argument, never proof that the argument is right, and a product can score well against one while still being something the world did not need. The Triple Bottom Line deserves particular interrogation: it places profit alongside people and planet deliberately, and whether that is a realistic accommodation or a convenient escape hatch is a genuinely open question you are allowed to have a view on. What examiners want is a view supported by evidence, so learn the frameworks well enough to apply them precisely, and then argue with them.

Students must be able toDiscuss strategies to achieve sustainability and the importance of decision-making when addressing issues related to sustainable design, including waste, pollution and energy consumption.

Sustainable development was defined by the Brundtland Commission (1987) in its report Our Common Future as: "meeting the needs of the present without compromising the ability of future generations to meet their own needs." This definition underpins all design-for-sustainability thinking: designers must consider not just the user in front of them but the long-term impact on resources, ecosystems, and communities.

Designers apply sustainability through two complementary approaches:

  • Top-down strategies: implemented at global or national level. Governments and international bodies set sustainability targets, resource-use limits, carbon reduction commitments, and waste regulations. The Brundtland Report itself is a top-down document: it establishes the framework and goals. A criticism of top-down approaches is that they often lack clear methodologies for achieving goals and are ambiguous about who is responsible for implementation.
  • Bottom-up strategies: implemented at regional or local level. These shift focus from the global problem to the impact of local action ("Think Globally, Act Locally"). Examples include the Clean-up Australia Campaign (mobilising local schools and community clubs to preserve bushland) and Landcare initiatives (planting native trees and grasses to stabilise coastal dunes against erosion). These grassroots efforts promote environmental stewardship and community pride without waiting for national policy.

Key decision areas for designers: When developing a product, sustainability-conscious decision-making covers:

  • Waste: minimise material waste in manufacture; design for disassembly so end-of-life materials can be separated and recovered
  • Pollution: specify materials and processes that do not release toxic by-products; avoid hazardous finishes, solvents, and adhesives
  • Energy consumption: reduce energy in manufacture and in product operation; specify renewable energy sources
  • Longevity: design for upgrade, repair, and reuse so products remain in service longer and reduce replacement demand
  • Material selection: prefer low-impact, recycled, or renewable materials over virgin non-renewable inputs
Regulatory Papers, Please preview
Interactive Tool
Regulatory Papers, Please

Develop a product from concept to market and watch a corner cut early resurface as a failed safety test, a certification refusal or a recall.

Students must be able toAnalyse sustainable products to demonstrate how they meet Datschefski's principles.

Greenwashing happens when a company markets a product as sustainable on the strength of one small, superficial environmental feature, misleading consumers through advertising and media. A company might market a product as "eco-friendly" because it contains 5% recycled material, while the remaining 95% uses virgin non-renewable inputs. In response to this, Edwin Datschefski (2001) developed five principles to judge a product's true sustainability and provide a clear benchmark rather than vague terms like "green" or "natural."

The five principles of sustainable design are:

  1. Cyclic: A product's materials should be able to feed back into a recycling loop once its use is over, whether through natural breakdown (composting of organic materials) or reprocessing back into the material stream (metals, plastics, glass). A product that ends in landfill fails this principle. Example: a backpack made from recycled PET bottles, designed for recycling again at end of life.
  2. Solar: Energy required for manufacturing and product operation must come from renewable sources (solar, wind, hydro, geothermal). Fossil-fuel-powered production fails this principle. Example: a solar-powered calculator requiring no batteries or grid electricity.
  3. Safe: Nothing hazardous should go into making the product, come out of it during use, or be released once it's disposed of. This includes avoiding PFAS ("forever chemicals") in waterproof clothing, lead solder in electronics, and brominated flame retardants. Example: furniture using non-toxic water-based adhesives rather than solvent-based formaldehyde products.
  4. Efficient: Designs should use one-tenth the materials and energy of previous designs. Multifunctional products reduce the cumulative impact of several separate devices. Example: a smartphone that replaces a camera, GPS device, music player, and phone, reducing material and energy use compared to owning four separate devices.
  5. Social: Manufacturing should happen under safe working conditions, following fair trade principles that protect workers' rights and benefit the communities involved. This includes conflict-free mineral sourcing and living wages in supply chains. Example: Fair Trade certified goods where farmers and producers receive equitable payment and work in safe conditions.

Datschefski proposed a "100-cubed project": the aspirational goal that 100% of products become 100% sustainable by the year 2100. While no product currently satisfies all five principles fully, they provide a measurable framework for incremental progress and a challenge to greenwashing.

Case Study
A Patagonia Worn Wear repair van and repaired jackets

Patagonia's Worn Wear

A clothing company that runs ads asking you not to buy a new jacket.

Read case study →

Students must be able toExplain the TBL and the relationship between the three Ps (people, profit, planet), which includes conflict and compromise.

The Triple Bottom Line (TBL) was attributed to John Elkington (1995). It measures an organisation's or product's level of success across three dimensions (the three Ps) rather than on financial performance alone:

  • People (social): social equity, fair labour practices, worker health and safety, community well-being, and human rights in the supply chain
  • Planet (environmental): environmental health, biodiversity, resource conservation, pollution reduction, carbon footprint, and responsible waste management
  • Profit (economic): economic viability, responsible growth, and long-term financial health of the organisation

The three Ps are often visualised as three overlapping circles (a Venn diagram). The intersection of all three is the zone of genuine sustainability: where a design meets social, environmental, and economic criteria simultaneously. Products or businesses that satisfy only one or two dimensions are not fully sustainable:

  • A product that is profitable and environmentally sound but relies on exploited labour satisfies Profit + Planet but fails People
  • A product that is profitable and socially fair but creates significant pollution satisfies Profit + People but fails Planet
  • A product that is environmentally sound and socially responsible but cannot be sold at a viable price satisfies Planet + People but fails Profit

Conflicts between the three Ps are common and central to the designer's challenge:

  • Profit vs. Planet: Transitioning to sustainable manufacturing requires new materials, processes, and equipment: all of which cost money and reduce short-term profit. A mining corporation expanding into a protected rainforest maximises Profit while destroying Planet.
  • Profit vs. People: Fair Trade programs guarantee living wages and safe conditions for workers, but increase operational costs and may reduce profit margins. A company that pays more for its raw materials in order to protect the people who produce them has less margin left, so the social gain and the financial gain pull against each other.
  • Planet vs. People: Closing a polluting factory improves Planet but eliminates the livelihoods of the community that depended on it (People).
Interactive
Triple Bottom Line Scoring Tool

Score a product on People, Planet and Profit, or load one of the examples below and watch the balance (or imbalance) shift on the diagram.

Students must be able toExplain how the TBL can help designers to prioritize the needs of clients, communities and the environment to discover design opportunities.

Because the three Ps of the TBL are frequently in conflict, designers cannot optimise all three simultaneously: they must make informed trade-off decisions. The TBL framework helps by making these trade-offs explicit and visible, rather than hiding environmental or social costs inside a single profit figure.

How designers use the TBL for decision-making:

  • Identifying design opportunities: Where a product currently scores poorly on Planet or People, there is a design opportunity to improve that dimension. For example, a product with a large carbon footprint offers an opportunity to redesign manufacture using renewable energy (Solar principle).
  • Prioritising stakeholder needs: The TBL forces designers to consider clients (Profit), workers and communities (People), and ecosystems (Planet) together, not as an afterthought. This aligns with User-Centred Design but extends concern beyond the immediate user.
  • Communicating trade-offs: Using the TBL framework, a designer can present a client with a clear analysis: "Option A increases profit but harms Planet; Option B costs more upfront but saves Planet and People over the product's lifetime." This supports evidence-based stakeholder conversations.

Strategies for resolving TBL conflicts:

  • Phased implementation: spread the cost of sustainable transitions over extended timeframes to mitigate investor and shareholder concerns about short-term profit reduction
  • Stakeholder education: communicate the long-term financial benefits of sustainability: reduced material costs, lower regulatory risk, stronger brand loyalty, and access to growing markets for sustainable products
  • Life-cycle thinking: costs that appear expensive at the design stage (e.g., specifying recycled inputs or renewable energy) are often offset by savings over the full product lifetime (reduced waste, lower energy bills, end-of-life material recovery value)
  • Demonstrating viability: using real examples (Framework Laptop, Patagonia, Interface flooring) to show clients that sustainable businesses can remain financially competitive

The TBL is not a checklist but a thinking tool. No product will score perfectly across all three dimensions; the goal is conscious, evidence-based decision-making that moves toward the TBL intersection rather than away from it.

Key concept
Stakeholders

A stakeholder is any person or group with an interest in, or affected by, a design decision: not just the client who commissions the work or the end user who buys it. In a TBL analysis, the three Ps map almost directly onto three stakeholder groups: Profit concerns the client and investors, People concerns workers, communities and end users, and Planet concerns everyone who shares the environment the product is made and disposed in, including people who will never use the product at all.

Recognising the full set of stakeholders is what makes a TBL trade-off visible in the first place. A decision that looks purely financial when the only stakeholder considered is the client (cheaper materials, lower wages, faster disposal) reveals hidden costs as soon as workers, neighbouring communities and future generations are counted as stakeholders too.

Stakeholders in a typical product decision
  • Direct stakeholders: the client, the end user, the manufacturer
  • Indirect stakeholders: factory workers, the local community near a factory or disposal site, competitors
  • Diffuse stakeholders: future generations, ecosystems and communities far from the point of manufacture or use

Ten questions covering sustainability strategies, Datschefski's five principles, the Triple Bottom Line, and TBL trade-offs. Select one answer per question, then click "Check all answers" to see your score and the explanations.

Q1 · 2.1.1 Sustainability Strategies
Which of these is a bottom-up sustainability strategy?
Bottom-up strategies begin with individuals and local communities acting on the principle of thinking globally and acting locally. Treaties, commission reports and national mandates all impose change downwards from institutions, and their common criticism is that they set goals without clear methods or clear responsibility for delivery.
Q2 · 2.1.1 Sustainability Strategies
Designing a product so that it can be taken apart at end of life primarily addresses which sustainability decision area?
Design for disassembly is the practical route to minimising waste, since mixed and bonded materials cannot be economically separated. The other decision areas designers weigh are pollution from hazardous processes and finishes, energy in manufacture and use, longevity through repair and upgrade, and the choice of low-impact or renewable materials.
Q3 · 2.1.2 Datschefski's Five Principles
Greenwashing is best described as:
A product with 5% recycled content advertised as eco-friendly while the rest is virgin material is the standard case. Datschefski developed his five principles precisely because words like green and natural carry no measurable standard, so a claim could not be checked against anything.
Q4 · 2.1.2 Datschefski's Five Principles
A backpack made from recycled PET bottles, designed so it can be recycled again at end of life, satisfies which principle?
Cyclic requires that materials return to a loop after use, either by breaking down naturally or by being reprocessed into the material stream, so a product that ends in landfill fails it. Solar concerns the energy used to make and run the product, safe concerns toxicity at every stage, and social concerns the conditions under which it was made.
Q5 · 2.1.2 Datschefski's Five Principles
A smartphone that replaces a separate camera, music player and navigation device is most often cited as an example of which principle?
Efficient calls for a design to use around one tenth of the materials and energy of what it replaces, and combining functions is the usual route, since one device doing four jobs displaces the material cost of three others. It is worth noting that a product can score well on one principle while failing others badly.
Q6 · 2.1.2 Datschefski's Five Principles
Which principle is breached when a supplier pays below a living wage or sources minerals from a conflict zone?
Social covers safe working conditions, fair trade, workers' rights and benefit to the communities involved, including conflict-free sourcing. Its presence in the list is what stops sustainability being treated as a purely environmental question.
Q7 · 2.1.3 Triple Bottom Line
The triple bottom line measures the success of a product or organisation across:
People covers social equity, fair labour and community wellbeing, planet covers environmental health and resource use, and profit covers economic viability. Reporting all three together is the point: an organisation cannot claim success on one while quietly failing the others. The framework is credited to John Elkington.
Q8 · 2.1.3 Triple Bottom Line
A profitable product with a genuinely low environmental impact is manufactured using exploited labour. In triple bottom line terms it:
Genuine sustainability sits where all three circles overlap, so satisfying two is not enough. The equivalent failures are a profitable, fairly made product that pollutes heavily, and an environmentally and socially sound product that cannot be sold at a viable price.
Q9 · 2.1.4 Balancing the Three Ps
A client resists switching to renewable energy in manufacturing because of the upfront cost. Which strategy from this topic addresses that objection most directly?
Phasing spreads the investment so short-term profit is not hit all at once, and it pairs with stakeholder education about reduced material costs, lower regulatory risk and stronger brand loyalty. Life-cycle thinking makes the same case numerically, since costs that look high at the design stage are often recovered across the product's life.
Q10 · 2.1.4 Balancing the Three Ps
In a triple bottom line analysis, which of the following counts as a diffuse stakeholder?
Client, user and manufacturer are direct stakeholders; factory workers, neighbouring communities and competitors are indirect; future generations and distant ecosystems are diffuse. Counting the full set is what makes a hidden cost visible: a decision that looks purely financial when only the client is considered stops looking that way once everyone affected is on the list.
Every Paper 2 question is attached to a product. Nothing here can be answered from memory alone: read the case study first, then answer the parts in order. The tariff tells you how many creditable points to make, and the command term tells you what kind of point counts. Write your answer before you open either panel, then mark yourself against the markscheme rather than against the example.
Question 1 · C2.1 · SL and HL6 marks
Case study

A company sells household cleaner as a small dissolvable tablet. The customer buys a refillable spray bottle once, then buys tablets, drops one into the bottle and adds tap water.

A conventional cleaner is sold ready mixed in a new plastic bottle each time.

Table 1: One year of use, twelve bottles of cleaner

Ready mixedTablet and refill bottle
Plastic bottles manufactured121
Mass shipped6.6 kg0.5 kg (tablets) + 0.1 kg (bottle)
Water content shipped95 %0 %
Tablet packagingPaper sachet, compostable
Cost to customer per year£24£30 first year, £27 after

(a) State which of Datschefski's five principles the removal of shipped water most directly serves, see Table 1. [1]

(b) Outline how the tablet system reduces transport impacts, see Table 1. [2]

(c) Explain why the tablet system is more sustainable despite costing the customer more, see Table 1. [3]

Example answer

(a) Efficient.

(b) Shipping falls from 6.6 kg to 0.6 kg over a year because 95 % of a ready-mixed bottle is water that is already available at the customer's tap. Less mass means fewer lorry journeys for the same number of customers, and because the tablets are small and not bottle-shaped they pack far more densely, so the volume moved falls even further than the mass.

(c) The extra £3 to £6 a year buys a change in what is being manufactured and moved rather than a better version of the same thing. Eleven fewer bottles are made each year per customer, and each of those is a moulded plastic part with its own oil feedstock, moulding energy and end-of-life problem, so the saving is in avoided production rather than in improved recycling. Ninety-five per cent of the shipped mass disappears, which removes a proportionate share of fuel, vehicle wear and warehouse space. The cost comparison also flatters the ready-mixed product, because the price of a plastic bottle does not include what happens to it afterwards, and the collection, sorting and landfill or incineration of twelve bottles is paid for by the community rather than by the customer. Sustainability is measured across the whole system, and on that measure a slightly higher price is buying a much smaller material and energy footprint.

Markscheme

(a) The five principles of sustainable design are that a product must be cyclic, solar, safe, efficient and social (Datschefski, 2001).
• Efficient ✓

Award [1] for the correct principle up to [1 max]. Accept cyclic if the response argues from the refillable bottle rather than from shipped water.

(b) Design for sustainability involves the choices and decisions made for developing designs and design methodologies.
• Shipped mass falls from 6.6 kg to 0.6 kg per customer per year ✓
• 95 % of a ready-mixed bottle is water already available at the customer's tap ✓
• Less mass means fewer lorry journeys for the same number of customers ✓
• Tablets are not bottle-shaped, so they pack far more densely ✓
• Volume moved falls further than mass, and vehicles usually fill by volume first ✓
• Lower mass reduces fuel consumption per unit delivered ✓
• Tablets can be posted rather than palletized, removing a delivery step ✓

Award [1] for each relevant brief point on the transport reduction up to [2 max]. Credit responses that quote values from Table 1.

(c) The triple bottom line measures levels of success in relation to social, economic and environmental factors, and cost to the customer is only one of these.
• The extra cost buys a change in what is manufactured, not a better version of the same product ✓
• Eleven fewer bottles are manufactured per customer per year ✓
• Each avoided bottle carries oil feedstock, moulding energy and an end-of-life problem ✓
• The saving is in avoided production rather than in improved recycling ✓
• 95 % of shipped mass is removed, with a proportionate saving in fuel and vehicle use ✓
• Paper sachets are compostable, so the remaining packaging leaves no persistent waste ✓
• The price of the ready-mixed bottle excludes the cost of dealing with it afterwards ✓
• Collection, sorting and disposal of twelve bottles are paid for by the community ✓
• Sustainability is measured across the whole system, not at the point of purchase ✓
• The premium falls after the first year, since the bottle is bought only once ✓

Award [1] for each relevant reason / cause explaining why the tablet system is more sustainable despite the higher price up to [3 max]. Credit responses that identify externalized costs.

Question 2 · C2.1 · SL and HL6 marks
Case study

A social enterprise makes a solar lantern for households with no grid connection. A small panel charges a lithium iron phosphate cell during the day, and the lantern gives eight hours of light. It replaces a kerosene lamp.

The enterprise assembles the lanterns in the country where they are sold, using imported cells and panels, and trains local agents to repair them.

Table 2: Solar lantern compared with the kerosene lamp it replaces

Kerosene lampSolar lantern
Purchase price£2£14
Running cost per year£38 of kerosene£0
Indoor air pollutionSignificantNone
Fire riskOpen flameNone
Service lifeYears5 years, cell replaceable
End of lifeMetal, recyclableCell and electronics require collection

(a) State which of Datschefski's principles the lantern's power source satisfies, see Table 2. [1]

(b) Describe how assembling and repairing the lantern locally serves the social principle, see Table 2. [2]

(c) Justify the lantern's £14 purchase price to a household earning under £3 a day, see Table 2. [3]

Example answer

(a) Solar.

(b) Assembly and repair work carried out locally keeps the wages and the skills in the community that buys the product, rather than exporting them to the manufacturer's country. Trained local agents also mean a failed lantern is repaired rather than discarded, which keeps the product working for a household that could not afford to replace it.

(c) The price is justified by what it removes rather than by what it provides. A kerosene lamp costs £2 to buy and £38 a year to run, so the lantern pays for itself in under five months and then saves the household roughly £38 every year for five years, which is more than twelve times its purchase price. That is a large sum relative to an income under £3 a day, and it is money returned to the household rather than spent. The lantern also removes an open flame and the indoor air pollution from burning kerosene, and the health and fire costs of those fall on exactly this household, so avoiding them has a real value that never appears in a price comparison. The genuine difficulty is not whether £14 is worth paying but whether a household on that income can find £14 at once, since kerosene is bought in small daily amounts. The justification therefore depends on the enterprise offering instalments or pay-as-you-go, without which a product that is clearly affordable over its life remains unaffordable to buy.

Markscheme

(a) • Solar ✓

Award [1] for the correct principle up to [1 max].

(b) The five principles of sustainable design are cyclic, solar, safe, efficient and social.
• Wages from assembly stay in the community that buys the product ✓
• Skills are developed locally rather than held by the manufacturer's country ✓
• Local employment is created in a place with limited opportunity ✓
• Trained agents mean a failed lantern is repaired rather than discarded ✓
• Repair keeps the product working for a household that could not afford a replacement ✓
• Local repair avoids shipping products back to a distant manufacturer ✓
• The agent network provides a route for the cell to be collected at end of life ✓

Award [1] for each detail, leading to an account of how local assembly and repair serve the social principle, up to [2 max].

(c) Designers make decisions by considering the balance between the three Ps of the triple bottom line.
Economic:
• Kerosene costs £38 a year against £0 running cost ✓
• The lantern pays for itself in under five months ✓
• Over a five year life it saves roughly twelve times its purchase price ✓
• The saving is money returned to the household rather than spent ✓
Social and health:
• Removes indoor air pollution from burning kerosene ✓
• Removes an open flame and the associated fire risk ✓
• Health and fire costs fall on this same household, so avoiding them has real value ✓
• Eight hours of light extends the hours available for study or work ✓
The real barrier:
• The difficulty is finding £14 at once, not whether it is worth paying ✓
• Kerosene is bought in small daily amounts, matching how income arrives ✓
• The justification depends on instalments or pay-as-you-go being offered ✓
• Without a payment mechanism a product affordable over its life is unaffordable to buy ✓

Award [1] for each valid reason / piece of evidence justifying the purchase price up to [3 max]. Credit responses that identify the affordability barrier as distinct from the value argument.

Question 3 · C2.1 · SL and HL10 marks
Case study · part 1

A clothing brand sells a cotton T-shirt for £5. It is designed to a price: single-stitched seams, lightweight jersey, and a printed graphic applied with plastisol ink. The brand releases new graphics every two weeks.

A second brand sells a T-shirt at £45 in heavier organic cotton with double-stitched seams, offers free repairs for life, and releases the same four styles each year.

(a) List two design decisions in the £5 T-shirt that shorten its useful life. [2]

Case study · part 2

Table 3: The two garments compared

£5 T-shirt£45 T-shirt
Mean wears before disposal7240
Cost per wear71p19p
Water used in production2700 L2700 L
CottonConventionalOrganic
RepairableNoYes, free for life
New designs per year264

(b) Outline what the identical water figures in Table 3 show about the source of a T-shirt's environmental impact. [2]

Case study · part 3

The £5 brand argues that it makes clothing available to people who cannot afford £45, and that its factories provide employment in regions with few alternatives.

(c) Describe the tension between the social and environmental dimensions of the triple bottom line raised by the £5 T-shirt brand’s argument. [2]

Case study · part 4

The £5 brand announces a "conscious" range using recycled polyester, promoted with green packaging and a leaf motif, while keeping its two-week release cycle unchanged.

(d) Evaluate the "conscious" range against the five principles of sustainable design, see Table 3. [4]

Example answer

(a) Single-stitched seams, which fail sooner than double-stitched ones; and a two-week graphic release cycle, which makes the design look dated long before the garment wears out.

(b) Both shirts consume the same 2700 litres, so almost all of a T-shirt's impact is incurred in growing and processing the cotton, before anyone has bought or worn it. That means the impact is fixed at the moment of manufacture and the only variable left is how many wears it is spread across, which is why 7 wears against 240 matters more than anything about the material.

(c) Cheap clothing genuinely serves people who cannot afford £45, and the factories provide income where alternatives are scarce, so shutting the model down would harm the people it employs and the people it clothes. Those same benefits depend on volume, and volume is what drives the environmental cost, because the model only works if garments are replaced constantly. The social good and the environmental harm are produced by the same mechanism rather than sitting side by side.

(d) Measured against the five principles the range fails on the one that matters most here and makes only marginal gains on the others.

Cyclic is the principle it claims. Recycled polyester does keep material in circulation and diverts bottles from waste, which is a real improvement on virgin fibre. It is a weak version of cyclic, though, because polyester jersey is not itself recycled at end of life in any volume, so this is a single downward step rather than a loop, and mixing polyester with cotton in a printed garment makes the result harder to recycle than the cotton shirt it replaces.

Efficient is where the range fails. Table 3 shows almost all impact is incurred in production, so efficiency is decided by wears per garment, and 7 wears is the number the two-week release cycle produces. Keeping that cycle unchanged means the range has altered the material and left the mechanism that wastes it exactly as it was. A more efficient garment worn seven times is still an inefficient product.

Safe is arguably worse rather than better, since polyester sheds microfibres into wastewater at every wash and the plastisol print remains. Solar is untouched: nothing in the announcement addresses the energy powering the factories. Social is unchanged, since the same factories and the same wages are involved.

Overall this is greenwashing in the specific sense Datschefski's principles were framed to expose. The leaf motif and green packaging communicate a change across the whole product, while the actual change is confined to one input and leaves the two-week cycle, the disposability and the seven wears untouched. A genuine response would have to slow the release cycle or make the garment repairable, both of which conflict with how the brand makes money, which is why the material was changed instead.

Markscheme

(a) • Single-stitched seams ✓
• Lightweight jersey ✓
• Plastisol print that cracks with washing ✓
• Two-week graphic release cycle ✓
• No repair provision ✓
• Designed to a price point rather than to a service life ✓

Award [1] for each relevant design decision up to [2 max].

(b) Design for sustainability involves the choices and decisions made for developing designs and design methodologies.
• Both garments consume the same 2700 L ✓
• Almost all impact is incurred in growing and processing the cotton ✓
• The impact occurs before the garment is bought or worn ✓
• It is fixed at manufacture and cannot be reduced afterwards ✓
• The only remaining variable is how many wears it is spread across ✓
• 7 wears against 240 therefore matters more than the choice of material ✓
• Organic cotton does not reduce water use, only the chemical inputs ✓

Award [1] for each relevant brief point on what the identical water figures show up to [2 max].

(c) The triple bottom line measures levels of success in relation to social (people), economic (profit) and environmental (planet) factors.
• Cheap clothing genuinely serves people who cannot afford £45 ✓
• The factories provide income in regions with few alternatives ✓
• Ending the model would harm the people it employs and those it clothes ✓
• Those benefits depend on volume ✓
• Volume is what drives the environmental cost ✓
• The model only works if garments are replaced constantly ✓
• The social good and the environmental harm come from the same mechanism ✓
• The two dimensions cannot be optimized independently ✓

Award [1] for each detail, leading to an account of the tension between the social and environmental dimensions, up to [2 max]. Award a maximum of [1] where the response addresses only one dimension.

(d) The five principles of sustainable design are that a product must be cyclic, solar, safe, efficient and social (Datschefski, 2001).
Cyclic, partly served:
• Recycled polyester keeps material in circulation and diverts bottles from waste ✓
• A real improvement on virgin fibre as an input ✓
• Polyester jersey is not itself recycled at end of life in volume, so it is one downward step, not a loop ✓
• Mixing polyester with a printed garment makes it harder to recycle than the cotton it replaces ✓
Efficient, failed:
• Table 3 shows almost all impact is incurred in production ✓
• Efficiency is therefore decided by wears per garment ✓
• 7 wears is produced by the two-week release cycle, which is unchanged ✓
• The material was altered and the mechanism that wastes it was left alone ✓
• A more efficient garment worn seven times remains an inefficient product ✓
Safe, arguably worse:
• Polyester sheds microfibres into wastewater at every wash ✓
• The plastisol print is retained ✓
Solar, untouched:
• Nothing addresses the energy powering the factories ✓
Social, unchanged:
• The same factories and wages are involved ✓
Judgment:
• This is greenwashing in the sense the five principles were framed to expose ✓
• The packaging communicates a whole-product change; the actual change is one input ✓
• A genuine response would slow the release cycle or make the garment repairable ✓
• Both conflict with the brand's revenue model, which is why the material was changed instead ✓

Award [1] for each distinct strength / limitation, leading to an appraisal of the range against the five principles, up to [4 max]. Award a maximum of [3] where fewer than three principles are addressed. Credit responses that identify greenwashing with reasoning rather than as an assertion.

Brundtland Commission, Wikipedia
en.wikipedia.org/wiki/Brundtland_Commission
The 1987 report that defined sustainable development and set up the top down approach discussed in 2.1.1.
25 years ago I coined the phrase triple bottom line, John Elkington
hbr.org/2018/06/25-years-ago-i-coined-the-phrase-tr…
The man who invented the triple bottom line explaining, in 2018, why he wanted it recalled. Read it after 2.1.3, because the criticism is more useful than the framework on its own.
Biothinking, Edwin Datschefski
biothinking.com
Datschefski’s own site for the five principles of sustainable products: cyclic, solar, safe, efficient and social. The source behind 2.1.2.
Greenwashing, Wikipedia
en.wikipedia.org/wiki/Greenwashing
How environmental claims get exaggerated or invented, with documented company examples and the regulatory response. Useful for reading any sustainability claim critically.
Clean Up Australia
cleanup.org.au
A bottom up sustainability campaign that started with one person and a harbour. Contrast its structure with the government led approach in the Brundtland material.
What is Fairtrade? Fairtrade International
fairtrade.net/about/what-is-fairtrade
Fair wages, safe conditions and community investment, and how certification is actually checked. Covers the social principle of Datschefski’s framework.
Triple bottom line, Wikipedia
en.wikipedia.org/wiki/Triple_bottom_line
People, planet and profit as three overlapping demands, with the criticisms of the model. Supports 2.1.3.
What is a circular economy? Ellen MacArthur Foundation
ellenmacarthurfoundation.org/topics/circular-econom…
Take, make, dispose against a closed loop, in diagrams. Preparation for C2.2.

Linking Questions

  • What are the advantages of using virtual prototyping techniques over physical prototyping techniques when developing sustainable products? (A2.2)
  • Does material classification suggest the sustainability of a material? (A3.1)
  • To what extent does a user-centred design (UCD) strategy promote the development of a sustainable product? (B1.1)
  • How important is material selection when creating products that are designed to be sustainable? (B3.1)
  • What complications do electronic systems introduce to the sustainability of a product? (B3.4)
  • Why are certain production systems considered less sustainable than others? (B4.1)
  • To what extent is design for sustainability the responsibility of the designer? (C1.1)
  • How does a product developed using a design for sustainability strategy tend to perform under a life-cycle analysis? (C3.2)