As States Spend Millions to Woo Data Centers, Colorado Is Having a Reckoning

Why It Matters

The clash highlights how rapid data‑center expansion can strain vulnerable communities and force policymakers to balance economic incentives with environmental justice and climate goals.

Key Takeaways

• Denver CoreSite data center approved without public hearing, sparking backlash.
• Diesel generators emit carcinogenic pollutants near low‑income housing and clinic.
• Mayor Johnston imposed a one‑year moratorium while drafting data‑center rules.
• State lawmakers debate tax breaks versus renewable‑energy guardrails for data centers.
• U.S. data centers projected to use electricity of 28 million homes by 2028.

Pulse Analysis

The AI surge has ignited a data‑center construction boom, with developers racing to meet the massive compute power needed for generative models. In the United States, the sector is expected to double by 2030, pushing annual electricity demand past the consumption of 28 million households and water use equivalent to 18.5 million homes. This growth strains power grids and water supplies, especially in regions already grappling with pollution, prompting scrutiny of the industry’s environmental footprint.

In Denver’s Globeville‑Elyria‑Swansea corridor, the controversy centers on health risks from diesel backup generators. Classified by the International Agency for Research on Cancer as carcinogenic, these engines emit particulate matter and ozone‑forming gases that exacerbate asthma rates already high among low‑income, predominantly minority residents. Community organizer Alfonso Espino’s coalition has pressed CoreSite for transparent reporting, cleaner Tier 4 generators, and a binding Good Neighbor Agreement, underscoring the broader environmental‑justice dimension of data‑center siting.

Policymakers are reacting with a mix of incentives and safeguards. While 37 states offer tax breaks to lure data‑center investment, Colorado’s legislature is split between a bill extending sales‑tax exemptions and a “guardrails” proposal mandating renewable‑energy sourcing, public hearings and community benefit agreements. Mayor Johnston’s citywide moratorium and similar proposals in Wisconsin, New York and Maine illustrate a growing consensus: without clear regulatory frameworks, the data‑center gold rush could undermine climate targets and burden local budgets. The outcome will shape how the industry scales responsibly across the United States.