Environmental, Social & Economic Challenges
Environmental, Social & Economic Challenges
Every design decision happens inside real-world limits. Before generating ideas, a designer must understand the environmental, social and economic challenges that create opportunities and constraints. This includes respecting the needs of different groups, weighing up ethical and environmental issues, applying green design principles, planning for recycling and reuse, and judging human capability, cost and manufacturing capability.
Respecting Different Needs and Values
Designers must show respect for different social, ethnic and economic groups, who often have different needs and values. A product designed only around one group’s habits and expectations risks excluding other users and missing a market entirely. Packaging text or imagery that works for one culture may cause offence in another, and a product priced for a high-income market may be unusable by lower-income consumers. Identifying these differences early opens up new design opportunities rather than closing them down.
Different social, ethnic and economic groups have different needs and values. Considering these differences when identifying design opportunities avoids excluding potential users and can reveal new markets.
Fair Trade, Carbon Offsetting & Disposal
Three linked issues sit at the heart of ethical and environmental design practice: fair trade, carbon offsetting, and planning for disassembly and disposal. Fair trade means producers in developing countries are paid a fair price for materials such as cotton or cocoa, rather than the lowest price the market will bear. Choosing fair trade suppliers can raise material costs but builds trust with ethically-minded consumers.
Carbon offsetting is when a business pays to fund projects — such as tree planting or renewable energy schemes — that remove or prevent an equivalent amount of carbon dioxide to the amount its own manufacturing and transport produce. A furniture company that ships timber internationally, for example, might offset shipping emissions by funding a reforestation project. Offsetting does not reduce emissions at source, so it works best alongside genuine reductions in energy use and transport distance, not instead of them.
Designers should also plan for what happens when a product reaches the end of its life. Product disassembly means designing a product so it can be taken apart easily, separating different materials for recycling or safe disposal. A product held together with screws can be taken apart for recycling far more easily than one that is glued or welded, because glued joints often mix materials that then cannot be separated and recycled.
Green Design Principles
Green design means making design decisions that reduce a product’s harm to the environment across its whole life, from material extraction to disposal. Key factors include choosing materials that need less energy to extract and process, reducing the volume and type of packaging used, specifying materials that are easy to recycle at end of life, and designing products to last longer so they need replacing less often.
Green design factors include: material choice (lower energy to extract or process), reduced and recyclable packaging, ease of recycling at end of life, and designing for a longer product lifespan.
Recycling and Reusing Materials & Products
Recycling and reusing both reduce the demand for new raw materials and the waste sent to landfill. Recycling breaks a material down so it can be reprocessed into something new — aluminium cans melted down to make new cans, for example. Reusing keeps a product or component in its original form for a new purpose, such as reusing glass jars for storage. Designers influence how easily this happens after purchase by choosing materials that can be separated and identified, avoiding unnecessary mixing of different plastics, and labelling components clearly for future recyclers.
A drinks manufacturer switching from a mixed-material carton to a single-polymer bottle makes recycling easier, because recycling plants can process one plastic type without first separating layers. If the same manufacturer instead sets up a deposit-return scheme so customers bring bottles back to be refilled, that is reuse rather than recycling — the bottle itself is not broken down, it is used again in its original form.
Human Capability & Cost of Materials
Human capability refers to the physical and mental abilities of the people who will make and use a product. A manufacturing process that needs a highly-skilled worker to hand-finish every item will be slower and more expensive than one designed for semi-skilled workers using jigs and templates, but it may achieve a higher-quality result. On the user side, a product must match the strength, dexterity and understanding of its intended users — a jar lid that requires a strong grip to open is not suitable for every user.
Cost of materials constrains almost every design decision. Material prices vary with global supply, and a rise in the cost of a commodity such as steel or cotton can force a redesign using a cheaper alternative or a reduced quantity of material. Designers must balance the cheapest available material against its suitability for the product’s function and its effect on quality.
Manufacturing Capability
Manufacturing capability means whether the intended manufacturer — whether a school workshop or a large factory — actually has what it takes to produce a design. A design that calls for injection moulding cannot be produced by a small workshop with only hand tools and a pillar drill. Before a design is finalised, a designer must check that manufacturing capability exists to produce it to the required quality and quantity.
Environmental Impact: Life Cycle Analysis
Life cycle analysis (LCA) is a systematic assessment of the environmental impact of a product at every stage of its life: extracting raw materials, manufacturing, transporting, using and finally disposing of it. An LCA might reveal that most of a product’s carbon footprint comes from the energy used while a customer operates it, rather than from manufacturing — which would tell a designer to focus effort on improving energy efficiency in use rather than only on the factory process.
A life cycle analysis (LCA) assesses environmental impact across five stages: raw material extraction, manufacture, transportation, use, and disposal.