Tag Archives: decarbonising

Digital carbon footprint: the environmental impact of digital transformation

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In recent decades, digital technology has revolutionised nearly all aspects of our lives, transforming the ways in which we work, communicate, travel, listen, watch, and play. For governments and policy makers, particularly in the context of the Covid-19 pandemic and the worsening climate emergency, connectivity and technological innovation have quickly become central to sustainable development, and the digital economy has brought great opportunities in tackling the climate crisis and working towards net-zero.

Digital transformation has improved efficiency and productivity across all sectors, and helped to dramatically reduce carbon emissions in agriculture, transport, planning, building, waste management, and public services. However, our use of digital technology comes with its own energy cost, and as the world becomes increasingly reliant upon the internet and connected devices, it is important to acknowledge and manage the environmental impact.

The carbon footprint of ICT

It is estimated that there are currently around 4.66 billion active internet users globally, and as population and connectivity grows, this figure is increasing rapidly.

While it is easy to think of the internet and the digital world as an abstract and intangible space, the infrastructure that supports it is very much physical and comes with significant environmental and spatial demands. A huge amount of energy is required to power data centres and servers and to build and maintain transmission networks, and most of this energy currently comes from fossil fuels.

The manufacturing, shipping, and powering of digital devices also consumes a vast amount of energy, and the mining and extracting of the raw materials used to make them has a direct impact on land quality and biodiversity.

The use of digital communication channels and social media also has a significant carbon footprint. It is estimated that sending one email emits around 4g of CO2, and that in a typical year for a user of a business email account, around 135kg of CO2 is emitted as a result of incoming mail.

The average internet user is expected to spend around 2.5 hours per day on social media, which is thought to be the equivalent of driving around 0.9 miles in a car, and over the course of a year adds up to the equivalent of driving around 332 miles.

Internet browsing also accounts for a significant portion of digital carbon emissions. According to Website Carbon, loading the average webpage produces around 1.76g of CO2, meaning if a webpage were to get 100,000 views per month, this would emit more than 2000kg of CO2 in a year.

Perhaps unsurprisingly, video and music streaming are among the biggest contributors to the digital carbon footprint, due to the vast amount of power needed to run the devices we stream on, as well as the energy needed to power the servers and networks that hold and transmit the content.  Streaming currently accounts for around 63% of global internet traffic, and video streaming alone is thought to generate approximately 300 million tonnes of CO2 every year (accounting for around 1% of total global carbon emissions).

What can we do?

ClimateCare and MyClimate have both produced useful guidance as to how we can work towards reducing our digital carbon footprint. The suggestions include:

  • Changing email habits, for example deleting older emails regularly and unsubscribing from unwanted newsletters.
  • Limiting video streaming and downloading content where possible.
  • Switching to a green cloud provider.
  • Unplugging devices when not in use.
  • Making devices and equipment last for as long as possible, disposing of old devices correctly, and purchasing refurbished or recycled devices where possible.
  • Storing data locally where possible and limiting cloud usage.

While individual behavioural changes are a part of the equation and certainly have the potential to make a significant difference, it is important to consider the wider context and look at changes that can be made at business and government level.

The ESCP Business School has highlighted the increasing need for businesses to be aware of the digital aspect of their carbon footprint, suggesting that the implementation of green ICT strategies will be crucial in helping organisations to meet sustainability goals, while also lowering costs.

Organisations have the potential to make a significant difference, for example by investing in green data centres and servers powered by renewable energy, building greener websites, refurbishing and repairing IT equipment to prolong its lifespan, and encouraging sustainable digital behaviours among employees.

What does this mean for policy?

As digital transformation continues at speed, the need for clear and effective policies around ICT and environmental protection becomes increasingly apparent. A 2018 report by Policy Connect called on governments and policy makers to recognise the energy consumption of the digital economy, to ensure best practice for the energy management of ICT, and to maximise the potential of carbon-saving digital technologies such as artificial intelligence, Internet of Things, and analytics.

This call to action is echoed in a 2021 report published by the Tony Blair Institute for Global Change, which emphasises the need for policy leaders to act quickly to harness technological innovation to address the climate crisis, reduce the cost of green technology, and encourage its adoption on a global scale.

As technology progresses and lines between the digital and physical world become increasingly blurred, policy makers will have the challenge of anticipating change and creating flexible policies to deal with rapid developments and manage the impact.

Final thoughts

Overall, there are many reasons to be optimistic about the potential for digital technologies to address climate change and mitigate the impact of the climate crisis. However looking to the digital future, with an increasing number of people and devices online and increased demands on infrastructure, it is important for the environmental impact of technology to be acknowledged, and the effects mitigated.

Further reading: more from The Knowledge Exchange blog on digital transformation and decarbonising:

Taking the long view: futures thinking and why it matters

Local government and artificial intelligence: the benefits and the challenges

Transport’s journey to sustainability

Looking back and beyond: The Knowledge Exchange blog in 2021

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brown sand near body of water during daytime

If 2020 was the year of the coronavirus, then 2021 was surely the year of the ‘coronacoaster’. From the highs of vaccine rollouts and loosening of social restrictions to the lows of fluctuating case numbers and a worrying new virus variation, we’ve all become unwilling passengers on what feels like an endless un-funfair ride.

But while the pandemic has never been far from our thoughts, it hasn’t taken over complete control of our lives. Research, evidence gathering, conferences and partnerships have continued in fields as diverse as education and housing, culture and the environment.  Which is why, this year’s reflection on The Knowledge Exchange blog in 2021 focuses on some of the issues that we covered which looked beyond the pandemic.

Saving the planet

Until the emergence of Covid-19, many regarded climate change as the greatest threat facing humanity. That threat hasn’t gone away. Last summer, the Intergovernmental Panel on Climate Change (IPCC) released its latest report on the current state of the climate crisis, setting out the already devastating effects of climate change and warning of the deadly impacts, which will intensify as the planet gets hotter.

Throughout this year, our blog has focused on this issue, highlighting the dangers posed by climate change and the efforts to tackle the problem. In April, we looked at the monumental challenge of decarbonising the UK’s ageing housing stock, and highlighted a survey showing that two-thirds of housing associations have started planning to make their homes greener and warmer.

“However, the survey also reported that lack of finance and continuing policy uncertainty remain major obstacles to decarbonising homes. That’s important, particularly given the cost of decarbonisation of social housing – £104bn by 2050.”

We returned to the issue this month, with an overview of plans by government and industry to make the transition from gas boilers to greener ways of heating our homes.

In November, the landmark COP26 climate conference took place in Glasgow, and while the major talking points included protection of the world’s forests and reducing dependency on fossil fuels, our blog focused on how important the circular economy is to tackling global warming:

“…if we were able to double the current 8.6% global circularity figure to achieve 17% circularity, that move alone would achieve the targets on global warming set out by the Paris COP meeting in 2015.”

The cultural imperative

From community murals to television drama, from open-air concerts to singers entertaining neighbours from their balconies, culture and the arts have played a vital role in diverting us from the grim news of the past two years. And although the arts have taken a severe hit during lockdowns, artists across the globe have continued to create and share their work.

In January, we highlighted some of the ways in which creative people have found new ways to express themselves and to support the wellbeing of others:

“Organisations and individuals have been doing a variety of work to reach those most in need such as projects creating new programmes or adapting existing work to reach people who are shielding or vulnerable in their homes, overwhelmingly addressing loneliness and isolation. One participant described their experience: “I found the process of drawing and painting both cathartic and healing at the most difficult time of my life.”

In April, our blog reported on efforts by cultural communities to break down some of the barriers to digital engagement. It’s estimated that seven million people in the UK don’t’ have digital access, while 11.7 million don’t have the digital skills needed to engage online. In an increasingly ‘digital by default’ society, those numbers are troubling.

Our blog post described some of the ways in which arts and cultural organisations are tackling digital exclusion:

“One project managed by Birmingham Museums involved taking digital kit out to care homes for digital arts sessions. This was not only great for wellbeing; it also showed how digital technologies can be adapted to connect with people within communities.”

Levelling up and the foundational economy

The economy is another recurring theme that we’ve highlighted in our blog. The UK is one of the most geographically unequal countries in the developed world. It ranks near the top of the league table on most measures of regional economic inequality. Fixing this is a priority for a government elected in 2019 on a pledge to address inequalities in former industrial regions, and in coastal and isolated rural areas.

In May we reported from a webinar looking at the scope for charities to get involved. On the face of it, the fact that much of the focus is on capital spending could be challenging for charities whose work involves tackling problems such as addiction or homelessness. However, our blog explained that charities shouldn’t write off their chances of obtaining levelling up funding:

“… a lot of the language used in the funding documents is ambiguous – there are repeated  references to ‘community’ and ‘community assets’ without making clear what they mean. This ambiguity could work in charities’ favour. At the same time, many charities work under the banners of skills, employment, heritage and culture. It’s up to charities, therefore, to identify elements in the funding that match what they can offer.”

In February, we shone a light on the foundational economy, which provides some of the essential services of everyday life, such as food, retailing and distribution, education, health and welfare. While these services are vital, many of the workers providing them are among the lowest paid in society.  Our blog looked at the potential value of the foundational economy for the post-pandemic recovery:

“It has been widely agreed that a return to a business-as-usual approach following the pandemic is not the way forward, and that there needs to be a shift in economic policies in order to achieve a more socially and economically just society. Perhaps if such policy change is achieved, a more balanced economy that provides a good quality of life for all can eventually be realised.”

The issues of our times

From town centres to smart cities, from Scotland’s burgeoning space sector to Britain’s hard-pressed food system, throughout the year we’ve been raising awareness of important issues that concern or impact on public policy and practice.

But we haven’t ignored the ongoing public health emergency. In November, we reported from a webinar on some of the lessons from the pandemic and the future role of public health; in July we looked at the important work of health librarians during the pandemic; and in May our blog reported on the role of behavioural insights, data analytics and “nudge” techniques in public health, and in particular during the vaccine roll-outs.

Final thoughts

As we stand on the threshold of 2022, things look uncertain. But, as our blog posts have demonstrated throughout the past year, despite the anxieties and restrictions generated by the pandemic, great work can still be achieved by the public and private sectors, by charities, communities and individuals, for the benefit of society and the wider world.

All of us in The Knowledge Exchange team – Morwen, Donna, Heather, James, Rebecca, Hannah, Euan and Hollie –  would like to wish all our readers a safe and peaceful festive season, and very happy new year.

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