United Nations Secretary-General António Guterres is pushing AI companies to publicly disclose their environmental footprint and commit to powering data centers with renewable energy by 2030, warning that communities are being left in the dark about the infrastructure's true climate cost. Speaking at London Climate Action Week on Tuesday, Guterres unveiled the AI Environmental Transparency Initiative, a framework designed to standardize how the industry measures and reports carbon emissions, water consumption, and land use associated with artificial intelligence systems.

The push for transparency comes as AI's environmental burden has become impossible to ignore. Data centers powering AI systems consumed about 1.5% of the world's electricity in 2025, and that figure is expected to nearly double to 3% by 2030, according to a UN report released earlier this month. The environmental footprint of these facilities already rivals that of some of the world's largest countries, and the water, energy use, and pollution associated with AI will double in just four years.

"No more hidden costs. No more shifting the burden onto those least able to bear it. It is time to come clean," said Guterres.

António Guterres, United Nations Secretary-General

Why Is AI's Energy Demand Growing So Fast?

The explosive growth of AI has complicated long-standing climate commitments made by major tech companies. Amazon and Google, among others, have pledged to power their operations with renewable energy by the end of the decade, but the race to deploy AI has sent greenhouse gas emissions soaring and made those targets harder to achieve. Regulatory barriers have also hindered climate-friendly projects, slowing the transition away from fossil fuels.

Currently, the global data center electricity mix is heavily dependent on coal and natural gas. Coal sources about 30% of the electricity consumed by data centers globally, while renewable energy supplies only 27%, natural gas provides 26%, and nuclear accounts for 15%, according to the International Energy Agency. Over the next five years, renewables are expected to meet just half of the growing demand, leaving a significant gap that will likely be filled by fossil fuels.

What Would the AI Environmental Transparency Initiative Require?

Guterres's proposal aims to establish standardized reporting across the industry, addressing a major gap in accountability. Currently, communities hosting data centers often lack basic information about the environmental impact of the infrastructure being built around them. The initiative would require AI companies to measure and disclose three key environmental metrics:

• Carbon Emissions: Companies would need to publicly report the carbon pollution generated by their data center operations and AI systems.
• Water Consumption: Disclosure of water used to cool data centers, a critical resource in water-stressed regions.
• Land Use: Reporting on the physical footprint and land requirements of AI infrastructure.

Beyond transparency, Guterres called for AI companies to commit to powering their facilities with renewable technologies such as wind and solar by 2030. Many major tech companies have already made similar pledges, but the accelerating pace of AI deployment has made these commitments increasingly difficult to honor without additional pressure and accountability mechanisms.

How Can Communities and Governments Push for Accountability?

The UN chief's call for transparency reflects mounting pressure from both governments and local communities in areas where data centers are being built. These communities bear the environmental costs of AI infrastructure, including water depletion, energy grid strain, and heat pollution, yet often have little visibility into the true impact. Standardized reporting would give local stakeholders, policymakers, and investors the information needed to make informed decisions about data center expansion.

• Local Advocacy: Communities can demand environmental impact assessments and transparency reports before approving new data center projects in their regions.
• Investor Pressure: Shareholders and investment firms can use standardized environmental disclosures to evaluate the climate risk of AI companies and direct capital toward those with stronger renewable commitments.
• Regulatory Action: Governments can mandate environmental reporting requirements and tie renewable energy commitments to permits and subsidies for data center development.

Guterres emphasized that addressing AI's environmental impact is just one piece of a broader climate strategy. He called for every major emitter to accelerate climate action and for countries to exceed their Paris Agreement commitments, which aim to keep global warming below 1.5 degrees Celsius. Last year marked the first time the three-year temperature average broke through that threshold, underscoring the urgency of the moment.

Is There Any Good News on the Renewable Energy Front?

Despite the challenges posed by AI's energy demands, there are encouraging signs in the global energy transition. Clean power generation, largely driven by solar and wind, exceeded overall global electricity demand growth last year. Renewables reached more than one-third of the world's electricity mix for the first time in modern history in 2025, while coal power fell below one-third of global generation. China continues to lead the world's clean energy transition, and fossil fuel generation is generally trending downward in Europe.

However, progress is uneven. The United States, under President Donald Trump, has embraced coal, oil, and gas while slashing support for renewables and broader climate action, complicating global efforts to decarbonize. Guterres characterized the current moment as "a tale of two crises," borrowing from Charles Dickens, noting that while the renewables revolution is well underway, climate impacts are intensifying and tipping points are looming.

The AI Environmental Transparency Initiative represents a critical step toward ensuring that the technology industry's rapid expansion does not undermine global climate goals. By demanding disclosure and renewable energy commitments, Guterres is attempting to align AI's growth with the urgent need to transition away from fossil fuels. Whether tech companies will embrace these standards voluntarily, or whether governments will need to mandate them, remains to be seen.