Information Technology and Sustainability: Building a More Responsible Digital Future

Information technology is often seen as immaterial: data travels through the cloud, services appear on screens and files take up no physical space. In reality, digital systems depend on energy, water, minerals, manufacturing and transport. They also create electronic waste. At the same time, technology can help organisations and communities use resources more efficiently and respond to environmental challenges.

The relationship between information technology and sustainability is therefore complex. The challenge is not simply to use more technology or less of it, but to design, buy and manage digital systems in ways that bring lasting benefits while reducing their environmental and social costs.

The environmental cost of digital technology

Every digital service relies on physical infrastructure. Data centres house servers and networking equipment; telecommunications networks carry information; and people use computers, phones and other connected devices to access services. These systems require electricity, and data centres may also use water for cooling. The scale of their impact depends on factors such as how efficiently equipment operates, how long devices remain in use and how the electricity is generated.

Much of a device’s environmental impact can occur before it reaches its user. Mining and processing materials, manufacturing components and transporting finished products all require energy and resources. Short replacement cycles can increase demand for new devices and add to the growing problem of electronic waste. Discarded equipment may contain valuable materials, but it can also include substances that need careful handling.

Technology as part of the solution

Information technology can also support more sustainable ways of working. Sensors and connected systems can help monitor energy use in buildings, identify leaks in water networks or improve the efficiency of transport. Digital tools can help organisations analyse resource use, reduce unnecessary travel and coordinate services more effectively.

Remote collaboration, for example, may reduce some business travel, while digital records can replace certain paper-based processes. However, these benefits are not automatic. Online meetings still require devices, networks and data centres, and digital systems can encourage additional consumption if they make buying, streaming or replacing products easier. The overall result depends on what a technology replaces, how it is used and how often it is used.

Making IT more sustainable

Keep devices in use for longer

Extending the life of computers, phones and other equipment is one of the most direct ways to reduce demand for new products. Organisations can choose durable, repairable devices, provide access to replacement parts and support upgrades where appropriate. Refurbishment and responsible resale can give equipment a second life. When devices can no longer be used, they should be reused, recycled or disposed of through reputable schemes.

Choose technology carefully

Purchasing decisions shape the impact of IT. Buyers can consider a product’s expected lifespan, energy efficiency, repairability and the manufacturer’s approach to responsible sourcing and end-of-life management. It is also worth asking whether new equipment is actually needed. Reallocating existing devices, improving maintenance or changing how a service is configured may meet the same need with fewer resources.

Use data centres and cloud services efficiently

Cloud services can make computing more flexible, but moving work to the cloud does not remove its environmental footprint. Organisations can review what data they store, delete information that no longer needs to be retained and avoid running services that are not being used. They can also ask providers for clear information about energy efficiency, renewable electricity, water use and emissions reporting.

Design efficient software

Software influences how much computing power and storage a service requires. Efficient code, sensible data practices and well-designed digital products can reduce unnecessary processing and network traffic. This can improve performance for users as well as reduce resource demand. Accessibility and usability matter too: a sustainable service should work for a wide range of people and devices rather than requiring frequent hardware upgrades.

People and fairness matter

Sustainability is not only an environmental issue. The production and disposal of technology affect workers and communities around the world. Responsible organisations should consider labour conditions, human rights and the sourcing of materials throughout their supply chains.

Digital change also needs to be inclusive. Services that move entirely online can exclude people without reliable internet access, suitable devices or confidence using digital tools. Providing accessible alternatives, protecting privacy and designing services around different needs helps ensure that the benefits of technology are shared more fairly.

Measuring progress

Good intentions are not enough. Organisations need to understand the impact of their digital systems and set practical goals. This might include tracking electricity use, device lifetimes, repair and reuse rates, electronic waste and emissions associated with suppliers. Measurements should be transparent and consistent, and claims should be supported by evidence.

It is also important to look beyond a single metric. A system that uses less electricity may still have a short lifespan or rely on materials with serious social impacts. Considering the full lifecycle—from design and manufacture to use and disposal—gives a more complete picture.

A thoughtful digital future

Information technology can help address environmental and social challenges, but it is not inherently sustainable. Its value depends on the choices made by designers, suppliers, organisations, governments and users. By making devices last longer, choosing services carefully, reducing unnecessary data and ensuring that technology is accessible and responsibly produced, society can make digital progress more compatible with a sustainable future.

The goal is not technology for its own sake. It is technology that meets real needs, uses resources wisely and contributes to a healthier, fairer world.

Nine Ways Information Technology Advances Sustainability

Improves energy efficiency through smart monitoring.
Helps reduce paper use with digital workflows.
Supports remote working and can cut some travel.
Enables better tracking of emissions and resource use.
Helps optimise transport routes and reduce fuel use.
Extends product life through repair and refurbishment.
Makes environmental data easier to collect and analyse.
Supports renewable energy through smarter grids.
Encourages more informed, sustainable decisions.

Challenges of Information Technology on Sustainability: Energy Use, Resource Depletion, and Social Inequality

Data centres consume significant energy and water.
Devices require resource-intensive mining and manufacturing.
Frequent upgrades increase electronic waste.
Cloud services still have environmental impacts.
Digital access gaps can deepen social inequality.
Efficiency gains may encourage greater overall consumption.

Improves energy efficiency through smart monitoring.

Smart monitoring systems can improve energy efficiency by tracking how electricity is used in buildings, factories and public services. Sensors and connected meters provide real-time information, helping people spot waste, adjust heating and lighting, and run equipment only when needed. Over time, this data can reveal patterns and guide better decisions, reducing energy use and costs while helping to lower carbon emissions.

Helps reduce paper use with digital workflows.

Digital workflows can reduce paper use by making it easier to create, share, approve and store documents electronically. Online forms, digital signatures and shared files can replace many printed documents, helping organisations use fewer paper resources and cut printing and postage costs. To make this benefit meaningful, digital records should be managed securely and retained only when needed.

Supports remote working and can cut some travel.

Information technology makes remote working possible through video calls, shared documents and online collaboration tools. By allowing people to work from home or join meetings remotely, it can reduce some commuting and business travel, helping to lower fuel use and transport-related emissions. The benefits depend on how remote work is organised, however, and digital services still use energy—so it works best as part of a broader effort to travel thoughtfully and use technology efficiently.

Enables better tracking of emissions and resource use.

Information technology makes it easier for organisations to track emissions and resource use across their operations. Smart meters, sensors and data-analysis tools can collect information on energy, water, materials and transport, helping businesses identify waste and spot where improvements are needed. With timely, reliable data, they can set measurable targets, monitor progress and make more informed decisions about reducing their environmental impact.

Helps optimise transport routes and reduce fuel use.

Information technology can help transport operators plan more efficient routes by analysing traffic, road conditions and delivery schedules in real time. GPS navigation and route-planning software can direct vehicles away from congestion, reduce unnecessary journeys and make better use of each trip. This can lower fuel consumption and operating costs, while also cutting greenhouse gas emissions and air pollution.

Extends product life through repair and refurbishment.

Information technology can support sustainability by helping products stay in use for longer. Online repair guides, diagnostic software and digital parts catalogues make it easier to identify faults and find the information or components needed to fix them. Refurbishment systems can also track, test and restore used devices so they can be resold or reused rather than discarded. By extending product life, repair and refurbishment reduce demand for new materials, limit electronic waste and help people and organisations get more value from the devices they already own.

Makes environmental data easier to collect and analyse.

Information technology makes environmental data easier to collect, manage and analyse. Sensors, satellites and connected devices can monitor air and water quality, energy use, wildlife populations and changing weather conditions, often in near real time. Digital tools can then bring this information together, reveal patterns and help researchers, businesses and public authorities make better-informed decisions. With clearer evidence, it becomes easier to identify environmental problems, track progress and target sustainability efforts where they can have the greatest impact.

Supports renewable energy through smarter grids.

Information technology can help renewable energy work more effectively by making electricity grids smarter. Sensors, digital meters and forecasting systems allow grid operators to monitor supply and demand in real time, predict changes in wind and solar generation, and balance electricity across the network. This can make it easier to integrate more renewable power, reduce energy waste and help ensure a reliable supply, even when the weather affects how much electricity is generated.

Encourages more informed, sustainable decisions.

Information technology can help people and organisations make more informed, sustainable decisions by providing timely access to data about energy use, emissions and resource consumption. Digital tools can reveal where waste occurs, compare the environmental impact of different options and track progress towards sustainability goals. With reliable information to hand, households can reduce energy use, while businesses and public services can make better choices about purchasing, transport and operations.

Data centres consume significant energy and water.

Data centres power the online services people use every day, but keeping their servers running and cool can require substantial amounts of electricity and water. Their environmental impact depends on factors such as energy efficiency, cooling methods and whether the electricity comes from renewable sources. As demand for cloud computing and digital services grows, improving data-centre efficiency and reducing water use are important steps towards making information technology more sustainable.

Devices require resource-intensive mining and manufacturing.

The environmental impact of information technology begins long before a device is switched on. Producing phones, computers and other electronics requires the mining and processing of materials such as lithium, copper and rare earth elements—activities that can consume large amounts of energy and water, damage ecosystems and affect nearby communities. Manufacturing components and assembling devices add further emissions and resource use. As a result, frequent upgrades and short product lifespans can increase demand for newly mined materials, making it important to choose durable, repairable devices and keep them in use for as long as possible.

Frequent upgrades increase electronic waste.

Frequent upgrades to phones, computers and other digital devices can increase electronic waste by encouraging people to discard equipment that still works or could be repaired. Replacing devices often also drives demand for new materials and energy-intensive manufacturing. When old technology is not reused or recycled responsibly, valuable resources may be lost and harmful substances can pollute the environment. Choosing durable, repairable devices and keeping them for longer can help reduce this waste.

Cloud services still have environmental impacts.

Although cloud services can make computing more flexible, they still rely on data centres that consume electricity and, in some cases, water for cooling. Their environmental impact depends on factors such as the efficiency of the facilities, the source of their energy and how much data is stored or processed. Moving files and services to the cloud does not make their footprint disappear, so organisations should choose providers with transparent environmental reporting and regularly remove data and services they no longer need.

Digital access gaps can deepen social inequality when essential services, education and job opportunities move online faster than everyone can access them. People without reliable internet, suitable devices or the skills and confidence to use digital tools may be left behind, particularly those on low incomes, people in rural areas, older people and disabled people. This exclusion can limit their ability to study, find work, manage finances or take part in public life. Making technology more sustainable must therefore include affordable access, accessible design and support for digital skills, alongside efforts to reduce environmental impact.

Efficiency gains may encourage greater overall consumption.

Efficiency gains do not always reduce environmental impact: when technology makes a service cheaper, faster or easier to use, people may use it more often or consume more overall. For example, more efficient data centres can lower the cost of online services, potentially encouraging greater streaming, storage and data use. This rebound effect can offset some of the environmental savings, so efficiency needs to be paired with measures that limit unnecessary consumption and consider the total impact of digital services.