Climate Solutions News speaks to Dr Mattia Romani, co-author of a groundbreaking new study published in npj Climate Action, which explores how artificial intelligence could dramatically cut global carbon emissions.

The report, produced by the Grantham Research Institute at LSE and Systemiq, finds that AI applications in power, transport and food systems could reduce emissions by 3.2 to 5.4 billion tonnes of CO₂ annually by 2035 — more than the current emissions of the entire EU.

Dr Romani breaks down the five key ways AI can support climate action:

• Optimising complex systems (like energy grids and transport networks)
• Accelerating technology discovery (especially in batteries and alternative proteins)
• Nudging low-carbon behaviour
• Modelling climate systems and policy impacts
• Enhancing resilience and disaster preparedness

He also addresses AI’s own energy footprint, the need for intentional public policy, and why this moment is a “once-in-a-generation opportunity” for governments and tech leaders to align climate and digital strategies.

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