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Section 1: The Wider Impact of Engineering
Every engineering project — from a new road to a smartphone — has an impact far beyond its immediate purpose. Engineers must consider the effects their work has on society, the economy and the environment. These impacts can be positive or negative, short-term or long-term, local or global.
The QS specification requires you to be able to give examples of social, economic AND environmental impacts — both positive AND negative — for engineering projects.
Section 2: Social Impacts
Social impacts are the effects an engineering project has on people and communities — their lives, lifestyles, wellbeing and culture.
When assessing social impact, consider: the facilities the project provides, how lifestyles may change, whether jobs are created or lost, effects on tourism, and how communities or cultures may be affected.
✅ Positive social impacts
+New hospitals and medical technology improve health outcomes and life expectancy
+New roads and bridges improve connectivity, reducing journey times and isolation
+Clean water engineering prevents disease and improves quality of life
+Renewable energy provides affordable electricity to more communities
+Communications engineering connects people globally, enabling education and commerce
❌ Negative social impacts
−Construction projects can cause noise, dust and disruption to local residents
−Large infrastructure projects may displace communities from their homes
−Automation reduces the need for human workers, leading to unemployment
−Industrial facilities can reduce property values and quality of life nearby
−Over-reliance on technology can lead to loss of traditional skills
✏️ Task 1 — Social impacts
1. Using your project from the Engineering Roles notes (or choose a new project), describe at least two positive and two negative social impacts.
Project:
Positive social impacts ✓ Saved
Negative social impacts ✓ Saved
2. A new wind farm is built on a hillside near a rural community. Give one positive and one negative social impact this could have on the local people.
Answer ✓ Saved
Section 3: Economic Impacts
Economic impacts are the effects an engineering project has on money, trade and the economy — locally, nationally and internationally.
When assessing economic impact, consider: where funding came from, whether jobs are created, effects on local businesses, running costs, profits and economic growth.
✅ Positive economic impacts
+Construction creates thousands of direct and indirect jobs in the local economy
+New roads and bridges reduce transport costs for businesses, improving productivity
+Tourism increases when landmark structures attract visitors (e.g. the Forth bridges)
+Renewable energy projects reduce fuel import costs and improve energy security
+Engineering exports earn income for a country (e.g. Scottish wind turbine expertise)
❌ Negative economic impacts
−Large projects are very expensive and may require public funding (taxpayers' money)
−Automation reduces employment, particularly in manufacturing and routine tasks
−High maintenance costs continue long after construction is complete
−Cost overruns are common in large engineering projects, diverting funds from other needs
−New technology can make existing industries obsolete (e.g. renewable energy displacing coal)
✏️ Task 2 — Economic impacts
Using your project, describe at least two positive and two negative economic impacts.
Positive economic impacts ✓ Saved
Negative economic impacts ✓ Saved
Section 4: Environmental Impacts
Environmental impacts are the effects an engineering project has on the natural world — air, water, land, wildlife and the climate.
When assessing environmental impact, consider: location and habitat disruption, pollution (air, water, noise, light), use of materials and resources, sustainability and recyclability, and long-term versus short-term effects.
✅ Positive environmental impacts
+Renewable energy engineering reduces carbon emissions compared to fossil fuels
+Water treatment engineering prevents pollution of rivers and seas
+Electric vehicles reduce air pollution in cities
+Modern building insulation engineering reduces energy consumption
+Biodegradable and recycled materials engineering reduces landfill waste
❌ Negative environmental impacts
−Construction causes habitat destruction, noise and dust pollution
−Fossil fuel power stations release CO&sub2; and other greenhouse gases
−Mining for materials (copper, lithium, rare earths) damages landscapes
−Industrial waste and chemical runoff can pollute water sources
−Wind turbines can affect bird and bat populations and visual landscape
✏️ Task 3 — Environmental impacts
Using your project, describe at least two positive and two negative environmental impacts.
Positive environmental impacts ✓ Saved
Negative environmental impacts ✓ Saved
Sustainable engineering means meeting current needs without preventing future generations from meeting theirs. Give two examples of engineering decisions that demonstrate sustainable thinking.
Answer ✓ Saved
Section 5: Engineering and Climate Change
Climate change is one of the most important engineering challenges of our time. The burning of fossil fuels releases CO&sub2; and other greenhouse gases, which trap heat in the atmosphere and cause global temperatures to rise. Engineers are at the forefront of developing solutions.
Engineering solutions to climate change
💨 Carbon Capture and Storage (CCS)
CO&sub2; produced at power stations is captured before it enters the atmosphere, compressed and stored underground in depleted oil and gas fields. Chemical engineers design the capture processes; civil engineers design the storage infrastructure. This allows fossil fuels to be used with reduced carbon emissions while renewable alternatives are developed.
🛡️ Coastal Flood Defences
Rising sea levels (caused by melting ice caps) threaten coastal cities. Civil and structural engineers design flood barriers, sea walls and tidal barriers (such as the Thames Barrier) to protect communities. These are expensive but essential responses to climate change impacts.
🔋 Grid-Scale Energy Storage
Renewable energy (wind and solar) is intermittent — it only generates when the wind blows or the sun shines. Electrical and chemical engineers are developing large-scale battery storage systems, pumped hydro storage and hydrogen production to store excess renewable energy for use when generation is low.
🚌 Zero-Emission Transport
Mechanical and electrical engineers are developing electric vehicles, hydrogen fuel cell buses and electric aircraft to reduce transport emissions — currently one of the largest sources of greenhouse gases. Scotland aims to phase out petrol and diesel cars by 2030.
✏️ Task 4 — Climate change engineering
1. Describe what climate change is and list three ways it is affecting the planet.
Answer ✓ Saved
2. Describe three engineering solutions to climate change. For each, explain how it works and what effect it has on the environment.
Solution 1:
Description and environmental effect ✓ Saved
Solution 2:
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Solution 3:
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3. Research: find a method by which CO&sub2; could be captured or used. Describe how it works.
Research notes ✓ Saved
Section 6: Emerging Technologies
Engineering is constantly evolving — making things smaller, lighter, faster, more efficient and more sustainable. Emerging technologies are new developments that are currently being developed or have recently become available.
Examples of emerging technologies
📱 Mobile and Smart Communications
Mobile phones have evolved from large, heavy devices in the 1980s to powerful computers in our pockets. 5G networks now enable ultra-fast data transfer supporting autonomous vehicles, remote surgery and smart cities. Future 6G technology will enable real-time holographic communication.
🤖 Artificial Intelligence and Automation
AI and robotics are transforming manufacturing, medicine, transport and agriculture. Robotic assembly lines improve speed, consistency and safety. AI systems can diagnose diseases from scans more accurately than doctors in some cases. Self-driving vehicles use AI to make real-time decisions from sensor data.
🧬 Bio-Engineering and Bio-Plastics
Traditional plastics come from oil and do not biodegrade. Bio-plastics (such as PLA — polylactic acid) are made from plant materials (e.g. corn) and break down naturally. Bio-engineers are also developing 3D-printed human tissue for transplants and prosthetics that interface directly with the nervous system.
🖨️ 3D Printing (Additive Manufacturing)
3D printing builds objects layer by layer from digital files. It is revolutionising manufacturing by allowing custom components to be produced quickly and cheaply — from spare parts to food to human tissue. Using bio-plastics makes 3D printing environmentally friendly. Future applications include printing entire buildings.
🔋 Solid-State Batteries
Current lithium-ion batteries in electric vehicles are limited in range, charge time and lifespan. Solid-state batteries replace the liquid electrolyte with a solid material, offering greater energy density, faster charging and improved safety. This technology could make electric aviation viable and extend EV range beyond 600 miles.
✏️ Task 5 — Emerging technologies
Research two emerging technologies that interest you. For each, describe the problem it solves, how the technology works, and what effect it may have on society or the environment. Your examples must be recent — either still in development or released within the last few years.
Emerging Technology 1:
Problem it solves ✓ Saved
How it works ✓ Saved
Potential impact ✓ Saved
Emerging Technology 2:
Problem it solves ✓ Saved
How it works ✓ Saved
Potential impact ✓ Saved
Section 7: Putting It All Together — Case Study
Use this section to bring together all three types of impact for a major engineering project of your choice. This mirrors the style of QS exam questions and the Engineering Contexts assignment.
📋 Task 6 — Full impact case study
Choose a major engineering project (your own choice — bridge, hospital, wind farm, electric vehicle programme, space mission, water treatment plant etc.).
Project name and brief description ✓ Saved
Social impacts — describe at least two positive AND two negative social impacts of your project. Consider: community facilities, lifestyle changes, job creation/loss, tourism, cultural effects.
Social impacts ✓ Saved
Economic impacts — describe at least two positive AND two negative economic impacts. Consider: funding sources, jobs, trade, running costs, profits.
Economic impacts ✓ Saved
Environmental impacts — describe at least two positive AND two negative environmental impacts. Consider: location, pollution, sustainability, short and long-term effects.
Environmental impacts ✓ Saved
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