Google's AI boom sends emissions, power use soaring

Google's electricity, water use and greenhouse gas emissions all climbed to record levels last year as the company raced to build more https://www.axios.com/technology/automation-and-ai" target="_blank">AI infrastructure.

Why it matters: Google has invested more aggressively than perhaps any other tech company in clean https://www.axios.com/energy-climate" target="_blank">energy, yet its https://sustainability.google/google-2026-environmental-report/%20" target="_blank">environmental report released Tuesday shows how difficult it has become to keep climate goals on track amid the AI buildout.

Driving the news: Google's data centers are becoming more efficient, but the company's AI infrastructure is growing even faster.

• "This rapid expansion in energy demand is a reality we must manage actively, and we're committed to ensuring that the growth of AI doesn't become a rationale for lowering our environmental standards," the report states.

By the numbers: Most are going up.

• Electricity demand jumped 37% — up from a 27% increase last year and roughly 3.5 times higher than in 2019.
• Greenhouse gas emissions rose 18%, the largest annual increase Google has reported, driven largely by manufacturing AI hardware, including chips and servers.
• Water consumption climbed 34% to 10.9 billion gallons, more than double 2021 levels.

  Data centers accounted for most of the increase.

Zoom in: Rapid growth has shifted the benchmark from cutting total emissions to preventing them from rising even faster.

• Google signed a record 12 gigawatts of clean energy agreements and held its share of carbon-free electricity roughly flat despite soaring demand.
• Electricity-related emissions fell 2% from 2024, compared with a 12% decline the year before.

Reality check: Tech companies have been releasing this type of annual report for several years — Google since 2016.

Until recently, they have served as a chance for tech companies to mostly boast about clean energy and climate accomplishments.

• Increasingly, with the AI boom fueling unprecedented growth, these reports are a reality check on those same ambitions.

Catch up quick: The rapidly growing energy and https://www.axios.com/2026/06/25/water-energy-ai-flashpoint" target="_blank">water use of data centers is coming under increasing scrutiny as the tech industry races to dominate on AI.

The intrigue: Google devoted a larger section this year to AI's potential environmental benefits, continuing to argue the technology can reduce emissions elsewhere in the economy.

• It expanded from five initiatives with estimated emissions benefits last year to nine this year.

What we're watching: Other tech giants, like Microsoft and Amazon, are due to release their annual environmental reports in the coming weeks.

The bottom line: Once-routine sustainability reports have become a closely watched scorecard for whether AI companies can match their climate promises with the infrastructure boom they're building.