UK Carbon Markets Surge as AI Data Centres Drive Emissions

The energy footprint of artificial intelligence infrastructure has created a new dynamic in carbon markets. Data centres that power AI operations now consume electricity at levels that could reshape how technology companies approach emissions reduction.

According to an IEA report, electricity use from AI data centres increased by 50% in 2025. Projections indicate that energy use linked to AI will double by 2030.

A report from The City of London Corporation and the UK Carbon Markets Forum connects this trend to rising demand for carbon credits. Companies are purchasing offsets to counterbalance emissions tied to AI expansion.

The credits fund projects that reduce or remove greenhouse gases. They form part of net zero strategies across the data centre sector.

Carbon markets respond to infrastructure

The scaling of AI infrastructure has altered procurement strategies in the technology sector. Microsoft and Google have increased their near-term demand for engineered greenhouse gas removal credits.

These credits permanently remove carbon dioxide from the atmosphere rather than avoiding emissions.

AI workloads require processing power that generates electricity consumption and heat.

Operators are using carbon credits to balance emissions while expanding capacity. The report quantifies this shift.

Amazon, Alphabet, Microsoft and Meta increased their purchases from 14,200 credits for permanent carbon removal in 2022 to 11.92 million credits in 2023.

This marks a substantial change in corporate carbon strategy.

Dame Clara Furse, Chair of the UK Carbon Markets Forum, says: "As demand grows for high integrity carbon credits, including from energy-intensive emerging technologies, the question is how markets channel this capital at scale.

"The UK already has a sophisticated financial and professional services ecosystem that is well placed to support Carbon Markets growth.

"This report shows that with the right policy framework, the UK can lead in scaling markets that deliver real climate impact and long-term economic value."

UK positioned for market growth

The UK holds a central role in this ecosystem. Carbon credit markets generate £1.2bn (US$1.6bn) in annual gross value added and support more than 11,000 jobs, according to the report.

This economic activity ties to the country's financial and professional services sector. The sector channels investment into global carbon projects.

Between 2023 and 2025, UK financial institutions and corporates committed US$5.8bn to carbon projects worldwide. These initiatives included nature restoration, flood protection and air quality improvement.

All contribute to emissions reduction or removal. The UK aims to develop a greenhouse gas removals strategy.

This could strengthen the UK's position, placing it second only to the US. The standing enables the UK to export expertise to international markets as data centre operators seek high-integrity carbon credits.

Insurance enables these projects as many carbon initiatives require coverage before proceeding.

Global gross written premium for carbon insurance products is projected to reach about £30bn (US$40.8bn) by 2050, according to the report.

This represents an approximately 80-fold increase. The UK currently leads the market.

Policy shapes carbon market direction

As AI expands across data centres, policy has become a factor in managing growth sustainably. A government consultation on carbon markets is expected this summer.

This creates an opportunity to define how the UK responds to demand from digital infrastructure. The carbon credit report sets out six recommendations for the government:

• Champion carbon market use by providing businesses with clarity and support to plan future credit use through either regulated pathways or endorsement of voluntary standards.
• Help define quality by setting or endorsing a quality threshold that gives developers, investors and businesses long-term confidence to invest in impactful projects.
• Help protect corporate claims by supporting UK businesses in making credible claims on credit use, protecting them from greenwashing risk.
• Build global capacity by using the UK's international influence to promote high-integrity carbon credits and support capacity building in emerging markets.
• Develop a UK greenhouse gas removals strategy by providing developers and investors with clarity on domestic demand and maintaining support for credit inclusion in the UK ETS.
• Incentivise nature investment by unlocking returns from the UK's underutilised natural capital assets through targeted nature investment incentives.

Chris Hayward, Policy Chairman of the City of London Corporation, says: "Carbon markets are a significant and growing part of the UK's financial services offer – generating over a billion pounds of economic value, supporting thousands of jobs and attracting billions in investment from around the world."

"As AI accelerates global demand for carbon credits, the City of London is well-positioned to be the home of that market.

"But that position is not guaranteed.

"We are calling on government to treat carbon market development as the industrial and financial services strategy priority it deserves to be."

As AI continues to scale, the relationship between data centre operations and carbon credit markets is tightening.

This could shape environmental strategy and economic opportunity in the technology sector.