Environmental Impact of Information and Communication Technologies

Information and communication technologies (ICT) exert profound environmental pressures across their life cycle. The extraction of minerals for device manufacture, the energy demands of data centres and networks, and the generation of electronic waste all contribute to greenhouse-gas emissions, resource depletion and pollution. Rapid growth in digital services—streaming, cloud computing and artificial intelligence—has driven unprecedented increases in electricity consumption, with peak loads now challenging grid stability. Indirect effects, including rebound phenomena, may offset direct energy savings from digital automation, complicating assessments of net environmental benefits. Efforts to decarbonise electricity grids, extend device lifetimes and implement circular-economy approaches are critical to mitigate the ecological footprint of ICT. The global significance of this challenge spans developed and emerging economies, influencing climate targets, mineral governance and infrastructure resilience. Coherent policy frameworks and cross-sector collaboration are essential to align technological innovation with planetary boundaries.

Research from Nature Portfolio

Recent studies have quantified the environmental burden of digital content consumption, revealing that current patterns of web surfing, social media, video and music streaming, and teleconferencing consume a substantial share of per capita carbon budgets and mineral resources. Findings indicate that these activities could account for around 40% of the carbon allocation consistent with limiting warming to 1.5 °C and over half of mineral and metal resource allowances under planetary-boundary concepts. The analysis highlights that while electricity decarbonisation can sharply reduce climate impacts, material-resource use remains a persistent concern. A combined strategy of rapid grid decarbonisation and measures to extend device lifetimes is therefore pivotal to prevent the growing demand for digital services from overstepping Earth’s finite carrying capacity.

Environmental Impact of Information and Communication Technologies publication trend

The graph below shows the total number of articles in environmental impact of information and communication technologies across all publications each year (not limited to Nature Index journals).

Technical terms

Life-cycle assessment (LCA): A systematic method to quantify environmental impacts across all stages of a product’s life, from raw material extraction to end-of-life disposal.

Rebound effect: A phenomenon where efficiency improvements in technology lead to increased consumption that partly or wholly offsets environmental gains.

Carrying capacity: The maximum level of resource use and environmental impact that Earth’s systems can sustain without irreversible damage.

Greenhouse-gas (GHG) emissions: Gases such as carbon dioxide and methane that trap heat in the atmosphere, driving climate change.

Decarbonisation: The process of reducing carbon emissions by transitioning energy generation and consumption towards low-carbon or carbon-neutral sources.

References

1. The environmental sustainability of digital content consumption. Nature Communications (2024).
2. The real climate and transformative impact of ICT: A critique of estimates, trends, and regulations. Patterns (2021).
3. The Energy and Carbon Footprint of the Global ICT and E&M Sectors 2010–2015. Sustainability (2018).
4. Known unknowns: indirect energy effects of information and communication technology. Environmental Research Letters (2016).
5. Digitalisation, energy and data demand: The impact of Internet traffic on overall and peak electricity consumption. Energy Research & Social Science (2018).
6. Twin transitions of decarbonisation and digitalisation: A historical perspective on energy and information in European economies. Energy Research & Social Science (2022).