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This lesson examines planned obsolescence — the deliberate design of products to have a limited lifespan — and its impact on sustainability, as covered in AQA GCSE D&T (8552), Section 3.2.3. This is a topic that connects design decisions directly to environmental consequences and is frequently tested in both the written exam and considered in NEA projects.
Planned obsolescence is a design strategy in which a product is deliberately designed to become outdated, unfashionable, or non-functional after a specific period, forcing the consumer to purchase a replacement.
There are several types of planned obsolescence:
| Type | Description | Example |
|---|---|---|
| Contrived durability | Product is designed to fail after a certain number of uses or time period | Printer cartridges with electronic chips that stop working after a set number of pages, even if ink remains |
| Systemic obsolescence | New versions of software or accessories make older products incompatible | New smartphone operating systems that no longer support older handsets |
| Aesthetic/style obsolescence | Fashion trends make products look outdated, encouraging replacement | Fast fashion — clothing designed to be worn only a few times before it looks "last season" |
| Technological obsolescence | New technology makes older products seem inferior | 4G phones replaced by 5G; Blu-ray replaced DVDs, which replaced VHS |
| Prevention of repair | Products are designed to be impossible or uneconomical to repair | Glued batteries in smartphones that cannot be replaced; proprietary screws requiring special tools |
AQA Exam Tip: The exam may ask you to identify types of planned obsolescence from a given scenario. Look for clues: if a product stops working unexpectedly after a specific period, it is likely contrived durability. If it still works but looks outdated, it is style obsolescence. If new software makes it incompatible, it is systemic obsolescence.
One of the earliest documented cases of planned obsolescence involved the Phoebus cartel — a group of the world's largest light bulb manufacturers (including Philips, Osram, and General Electric) who agreed in 1924 to limit the lifespan of incandescent bulbs to 1,000 hours. Before the cartel, bulbs commonly lasted 2,500 hours or more. The cartel enforced the limit by fining manufacturers whose bulbs lasted longer than the agreed standard.
American industrial designer Brooks Stevens coined the term "planned obsolescence" in 1954, defining it as "instilling in the buyer the desire to own something a little newer, a little better, a little sooner than is necessary." He argued it was a positive force that drove innovation and economic growth.
Planned obsolescence has severe environmental consequences:
| Impact | Description | Scale |
|---|---|---|
| Increased resource extraction | More products manufactured means more raw materials mined, drilled, and logged | Global resource extraction has tripled since 1970 |
| Higher carbon emissions | Manufacturing replacement products produces additional CO2 | Consumer electronics alone account for ~2% of global emissions |
| Electronic waste (e-waste) | Short-lived electronics create vast amounts of hazardous waste | ~54 million tonnes of e-waste generated globally per year; only ~17% is formally recycled |
| Landfill pressure | Products disposed of before the end of their potential useful life | UK households produce ~26 million tonnes of waste per year |
| Water and energy consumption | Manufacturing uses significant water and energy resources | Producing a single smartphone requires ~13,000 litres of water |
The fashion industry is one of the worst offenders for planned obsolescence. Fast fashion brands release new collections every few weeks, encouraging consumers to discard clothing after only a few wears.
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