Tag Archives: carbon

Digitalisation and decarbonisation: a 2-D approach to building back greener

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Across the world, two disruptive and powerful trends are taking hold: digitalisation and decarbonisation. At times, it seems as if these two forces are acting against each other, with digital technologies accelerating economic growth, but also consuming huge quantities of energy and emitting high amounts of CO2.

But it’s becoming clear that rather than competing, digitalisation and decarbonisation can work together in ways that achieve sustainable economic growth without destroying our home planet.

The net zero imperative

We’re now familiar with the evidence that global warming will do irreparable damage to the world unless we can reduce the greenhouse gases that cause it. Getting to net zero means achieving the right balance between the amount of greenhouse gas produced and the amount removed from the atmosphere.

The challenge is one not just for national governments. Businesses are facing growing regulatory, reputational and market-driven pressures to transform their business models and embrace the shift to a low-carbon, sustainable future. It’s here that digitalisation can support us on the path to net zero.

The digital possibilities

In 2020, a Green Alliance study reported that  digital technologies could have significant positive environmental impacts, including: accelerating the deployment of clean technologies and helping businesses to stop wasting energy and resources.

But the report also found that many UK businesses are still not making use of digital solutions: only 42% of UK businesses have purchased cloud computing services, compared to 65% in Finland and 56% in Denmark. The authors highlighted a number of factors explaining slower digital adoption, including lack of digital skills, concerns about cybersecurity and privacy, and underinvestment in infrastructure.

AI as an ally in the battle against climate change

Another report, published last year by PwC and Microsoft explored the potential of artificial intelligence (AI) in tackling the climate crisis. Focusing on agriculture, water, energy and transport, the report revealed numerous ways in which AI can have positive environmental and economic impacts.

  • In agriculture, AI can better monitor environmental conditions and crop yields;
  • AI-driven monitoring tools can track domestic and industrial water use, and enable suppliers to pre-empt water demand, reducing both wastage and shortages;
  • AI’s deep learning, predictive capabilities can help manage the supply and demand of renewable energy.

The report stressed that AI cannot act on its own, but will rely on multiple complementary technologies working together, including robotics, the internet of things, electric vehicles and more.

While the challenges of putting AI to work in tackling the climate crisis are great, the prizes of doing so are equally significant. The PwC/Microsoft report estimated that across the four sectors studied AI could:

  • contribute up to $5.2 trillion to the global economy in 2030;
  • reduce worldwide greenhouse gas emissions by up to 4.0% in 2030, (an amount equivalent to the 2030 annual emissions of Australia, Canada and Japan combined);
  • create up to 38.2 million net new jobs across the global economy.

Put simply, AI can enable our future systems to be more productive for the economy and for nature.

The downsides of digitalisation

As we’ve previously reported, the infrastructure that supports the digital world comes with significant energy costs and environmental impacts. From internet browsing, video and audio streaming, as well as manufacturing, shipping, and powering digital devices, digital has its own substantial carbon footprint.

The PwC/Microsoft report acknowledges that there will be trade-offs and challenges:

“For example, AI with its focus on efficiency through automation might potentially lead to ‘over exploitation’ of natural resources if not carefully guided and managed. AI, especially deep learning and quantum deep learning, could also lead to increased demand for energy, which could be counter-productive for sustainability goals, unless that energy is renewable and that electricity generation is developed hand-in-hand with application deployment.”

In addition, there is a need to ensure that all parts of the world are able to capture the benefits of digital technologies – not just the more advanced economies.

Final thoughts

Decoupling economic growth from greenhouse gas emissions is one of the biggest challenges of our lifetime. Digital technologies have enormous potential not only to achieve decarbonisation, but to improve economic performance.

As both the Green Alliance and PwC/Microsoft reports have underlined, this can be achieved by taking a joined-up approach to digitalisation and green growth. This means thinking beyond the technology to consider issues such as investing in education and training to develop the skills needed to support the growth of clean industries and digitalisation, addressing privacy concerns and supporting businesses in their drive to shrink their carbon footprints.

As we emerge from a pandemic which has inflicted great damage to economies, but which has also demonstrated the possibilities of changing longstanding habits, digitalisation is presenting us with opportunities to ensure that building back greener is more than just a slogan.

Further reading: more on climate change and technology from The Knowledge Exchange blog:

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Guest post | Carbon capture and storage: where should the world store CO₂? It’s a moral dilemma

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The recent Glasgow climate pact committed 197 countries to “phas[ing] down unabated coal”. Unabated coal refers to when power stations or factories burn coal without capturing and storing the carbon dioxide (CO₂) generated.

Kian Mintz-Woo, University College Cork

Because the world has made such little progress in eliminating coal, oil and fossil gas, climate modellers foresee some use of carbon capture and storage as necessary to reach zero emissions in enough time to avert catastrophic warming. The technology to capture carbon is in development, but one burning question remains: where on Earth should we store all that carbon?

Different methods of carbon capture will take place at different sites. Some involve absorbing emissions immediately after burning fossil fuels in chimneys and smokestacks where the CO₂ is highly concentrated. Other methods capture carbon directly from the air, either by using chemical reactions that bind the carbon using lots of energy or by growing carbon-hungry plants which can be burned for energy and the resulting emissions subsequently captured.

In new research, myself and environmental engineer Joe Lane at Princeton University in the US argued that, regardless of the method, leaving decisions about where to store carbon to commercial entities would mean avoiding an important moral dilemma.

Funding for carbon capture and storage is insufficient. At the current rate of deployment, 700 million tonnes of CO₂ storage capacity will be added by 2050 – 10% of what is required.

Countries would have to massively ramp up investment to be compliant with the Paris agreement’s target of limiting global warming to 1.5°C. Some of this money would be public funding, and people would reasonably expect it to fund projects which are morally sound.

On the one hand, it might be deemed important to develop storage sites with the best prospects for storing lots of greenhouse gas for the longest duration. This argument maintains that the most important consideration for deploying carbon capture and storage is making the largest possible contribution to arresting climate change.

To give carbon storage sites the greatest chance of success, it makes sense to develop them in places where the geology has been thoroughly explored and where there is lots of relevant expertise. This would imply pumping carbon into underground storage sites in northern Europe, the Middle East and the US, where companies have spent centuries looking for and extracting fossil fuels. Storing carbon is roughly the reverse of extracting it from the ground, and there is an opportunity for workers in the oil and gas industry to lend their skills and expertise to this endeavour.

A California oil field dotted with derricks.
Some US companies have been extracting oil for well over a century. Alizada Studios/Shutterstock

On the other hand, it might be important to develop storage sites in economies where the current and future demand for carbon capture and storage is greatest. These competing aims pull in different directions. The regions with the best prospects are not often those with the greatest expected need.

Developing storage sites in economies where expected demand for carbon capture is highest overwhelmingly favours developing regions of Asia. In India and China, for instance, coal power stations and cement plants are expensive to decommission and will need lots of carbon capture and storage capacity to decarbonise. If developing regions are expected to decarbonise without sufficient support to roll out carbon capture and storage, it could mean they have to throttle development to reduce emissions.

There are no easy answers in this debate. Increasing carbon capture and storage capacity as quickly as possible could benefit future generations by reducing the severity of climate change. So, you could argue that developing the most promising sites in Europe is the best way forward. But directing investment for storage facilities from wealthy countries to developing regions could help address the debt the former owes the latter for causing the brunt of the climate crisis.

World leaders should recognise this moral dilemma and consider the choices with urgency. The need to remove and safely store carbon becomes more severe by the day. Given the time and costs involved in developing storage sites, and the real possibility that the storage sites may not be sufficient for the carbon countries emit, this is a question which cannot be delayed.

Kian Mintz-Woo, Lecturer in Philosophy, Environmental Research Institute, University College Cork

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Further reading: more on air pollution from The Knowledge Exchange blog: