How To Reduce Your Digital Carbon Footprint

The digital world is not a weightless environment where emails, videos and files float freely through the cloud. Behind it is a massive physical infrastructure that includes data centres, cooling systems, global networks and millions of devices that require power every day. In today’s society, digital technology is accountable for the rise in global emissions.

As a result, knowing what digital carbon footprint is the first step toward minimising our carbon footprint. This article outlines what causes digital emissions, why they are increasing and what practical changes we can make now to mitigate the effects.

In this Article

What Is A Digital Carbon Footprint?

A digital carbon footprint is the total greenhouse gas emissions that is generated through the use of digital devices, internet services, clous storage and other online platforms. This means that anything that is stored online consumes energy and most of that energy is likely still coming from fossil fuels.

Even if our electronic devices consumes little energy, the bigger impacts is caused by the data centres that runs the internet. This is because data centres operates constantly, requiring massive amounts of electricity and water to store, process and transport data. For instance, in 2024 data centres were responsible for about 3% of global carbon emissions, which is more than aviation.

Why Are Digital Emissions Rising?

The rapid expansion of digital technologies has led to a rise in digital emissions, which has significantly impacted global energy consumption and environmental health. Several key factors contribute to this trend:

Cloud Storage: Is growing swiftly, with 60% of corporate data stored in the cloud by 2022. This surge increases the energy demand of large data centres, which are massive facilities that require constant power and cooling to operate.
Streaming: Online video streaming now accounts for 60–75% of global internet traffic, making it one of the most energy-intensive digital activities. For example, streaming a single hour of video can consume as much energy as charging several smartphones.
Artificial Intelligence (AI): Training and running advanced AI models consumes vast amounts of electricity and water. A single AI query can use 50–90 times more energy than a standard web search, comparable to powering a household for several hours.
Short Device Lifespans: Creates more e-waste due to the rapid turnover of phones, laptops and tablets drives up manufacturing emissions and contributes to the growing global waste problem, as discarded electronics often contain hazardous materials.
Growing Digital Habits: In 2024, 5.35 billion people used the internet, spending an average of 6 hours 40 minutes online daily, a scale that magnifies even small inefficiencies.

Addressing these factors is important for reducing the environmental footprint of our increasingly digital world and promoting sustainable technology use.

How Your Everyday Habits Add Up

Everyday digital habits might seem small individually, but they collectively contribute significantly to carbon emissions. Understanding their impact can help you make more sustainable choices. For example:

Emails: Receiving emails for a year adds roughly 136 kg of CO₂ to an average person’s footprint, which is equivalent to driving about 320 km.
Streaming: In HD or 4K uses significantly more data than standard definition (SD). This means that switching to SD can reduce your streaming carbon footprint by over 90%, from around 53 kg of CO₂ per month to just 2.5 kg.
Cloud Storage: Only 5% of stored data is reused after 90 days, meaning most cloud files become digital clutter continuously consuming energy without purpose.
Device Energy Use: Idle electronics contribute to up to 10% of household energy use due to “phantom load”, which are devices drawing power even when turned off or not actively used.

By being mindful of these habits, you can lower your digital carbon footprint and help reduce overall energy consumption.

10 Ways to Reduce Your Digital Carbon Footprint

Reducing your digital carbon footprint is achievable through simple, evidence-based actions that anyone can adopt at home, school, or work. Here are 10 practical ways to make a difference:

Declutter Your Cloud Storage: By deleting old files, emails and duplicates. Since cloud servers run continuously, reducing stored data directly cuts energy use. Also, Where possible, choose providers powered by renewable energy.
Stream Smarter: Lower video resolution when high quality isn’t essential. Download content you watch repeatedly and disable auto-play to avoid unnecessary streaming.
Reduce Email Emissions: Unsubscribe from newsletters you don’t read. Avoid sending large attachments by linking to shared documents instead. Regularly delete old emails, especially those with attachments.
Turn Off Devices: Shut down laptops, routers and monitors instead of leaving them on standby to reduce phantom load and save energy.
Use Energy-Efficient Settings: Enable dark mode on OLED screens for up to 30% energy savings. Use browsers with built-in ad blockers to reduce unnecessary data loading.
Optimise Cloud Syncing: Avoid syncing your entire photo gallery across all devices. Limit auto-backup to essential folders only.
Choose Energy-Efficient Devices: Buy products with Energy Star ratings and prioritise repairing rather than replacing. Longer device lifespans reduce manufacturing emissions and e-waste.
Recycle or Donate Old Devices: Use certified e-waste centers or donate working devices to extend their life and reduce waste.
Switch To Renewable-Powered ISPs or Hosting: Some internet providers and cloud services run on 100% renewable energy, reducing the footprint of your online activities at the source.
Be Mindful of AI usage: AI queries and tools consume significantly more energy than standard searches.

Implementing these steps can collectively make a meaningful impact in lowering your digital carbon footprint and promoting sustainable technology use.

Conclusion

Digital technology can help reduce emissions through smart grids, remote work, digital twins and AI‑driven optimisation could cut global GHG emissions by up to 20% by 2050.

But this potential only becomes reality if we address the rising footprint of the digital sector itself. By adopting low‑impact digital habits, we reduce pressure on data centres, cut energy demand and support a more sustainable internet.