Negative Impacts of Data Centers

Negative Impacts of Data Centers- General examples

Dangers of data centers refer to the negative environmental and community impacts from large facilities full of computer servers that store data, run AI (artificial intelligence), and support internet services. These facilities use massive resources and create pollution.

Water Impacts

Data centers need huge amounts of water mainly for cooling hot servers through Closed-loop water cooling systems for AI data centers still use significant amounts of water mainly because of evaporation.

In these systems, water or coolant circulates in sealed pipes or loops to absorb heat from servers. However, the heated water often passes through cooling towers or heat exchangers where some of it evaporates into the air to release heat. This evaporation leads to ongoing water loss, requiring fresh makeup water to keep the system running. While true closed-loop designs reduce water use compared to older open systems, sometimes by 70 percent or more, they rarely eliminate it entirely, especially in large AI facilities handling high heat loads. A single large data center can still consume hundreds of thousands to millions of gallons per day, depending on its size and location.

The wastewater, known as blowdown, also creates pollution concerns. As water recirculates and evaporates, minerals and chemicals build up. Operators periodically drain some of this concentrated water to prevent damage to equipment. This discharge often contains treatment chemicals such as biocides (to control bacteria and algae), corrosion inhibitors, scale preventers, and sometimes heavy metals or elevated mineral levels. If not properly treated before release to sewers or waterways, it can harm aquatic life, alter pH levels, increase salinity, or overload local wastewater treatment plants. Warmer discharged water can also cause thermal pollution, stressing ecosystems.

Normal Water-Cooling problems;

Water pollution: Chemicals like biocides (to kill bacteria in cooling water), corrosion inhibitors, and salts from evaporated water can enter local water systems.

  •  Example 1: Wastewater discharge with concentrated salts and contaminants harms rivers or groundwater.
  • Example 2: Fine salt dust from cooling towers settles on soil and surface water, increasing salinity and damaging plants and aquatic life. Source: https://www.eesi.org/articles/view/data-centers-and-water-consumption
  • Salt water intrusion: In coastal areas, heavy groundwater pumping can pull saltwater into freshwater aquifers (underground water layers).
  •  Example 1: Over-pumping near the coast lowers freshwater levels, allowing ocean saltwater to mix in.
  • Example 2: This makes drinking water salty and unusable for farms or homes in affected areas. (Related reports on groundwater strain: https://www.wri.org/insights/us-data-center-growth-impacts)

Huge wasteful water usage:

Hyperscale data centers use a massive amount of water, primarily for evaporative cooling to keep servers from overheating. Usage varies by size, location, climate, and cooling technology (e.g., traditional evaporative vs. more efficient closed-loop or air-cooled systems).

Two Real-World Examples

  1. Large / High-End Hyperscale Data Center
    • Up to 5 million gallons per day (or more in peak summer heat).
    • This equals the daily water consumption of a town of 10,000–50,000 people.

Google Example: One of its largest facilities (Council Bluffs, Iowa) consumed around 1 billion gallons in 2024.

Broader Context:

  • A single large hyperscale facility can use hundreds of millions to billions of gallons annually.
  • Nationally, U.S. data centers consumed about 449 million gallons per day (as of earlier 2020s data), with hyperscale facilities driving most of the growth.

Links

EESI: Data Centers and Water Consumption

Water use is a major local concern in drought-stricken areas.

Medium Data Center

A medium data center can use about 300,000 gallons per day; large ones up to 5 million gallons daily (enough for a town of 10,000–50,000 people). U.S. data centers together use billions of gallons yearly.

  • Example 1: In Northern Virginia, data centers used nearly 2 billion gallons in 2023.
  • Example 2: A Meta center in Georgia uses 500,000 gallons daily, or 10% of the county’s water. Source: https://www.eesi.org/articles/view/data-centers-and-water-consumption
  • Costs and prices: High water use raises utility bills and strains supplies, leading to higher rates for everyone.
  • Example 1: Communities face rate hikes as water authorities build more infrastructure.
  • Example 2: In water-stressed areas, competition increases prices and forces restrictions on residents. Source: https://www.wri.org/insights/us-data-center-growth-impacts
  • Even if the data center is 30-50 miles away aquifers are connected and the water being used for the data center will drain your aquifer. I see that effect here in Florida. We are getting a tremendous amount of rain in our area but neighboring counties have draught conditions and our aquifer fed pond is low.

Electrical Impacts

Data centers use enormous electricity (often from power plants), driving up demand and costs.

Rising prices and why: Utilities build new power lines, substations, and plants; costs pass to customers. Wholesale prices near data centers rose up to 267 percent in some areas over five years.

Example 1: In Virginia, residential bills spiked due to data center demand.

Example 2: In PJM grid areas (PJM grids are the nation’s largest regional electricity market covering 13 states plus Washington, D.C. and home to massive data center concentrations in Northern Virginia)   capacity prices jumped dramatically (for example, 800 percent or more in some auctions), adding hundreds of dollars to monthly bills for many customers. PJM runs competitive capacity auctions where power generators bid to provide available electricity when needed in the future. These auctions help ensure grid reliability, but surging data center demand has driven sharp price increases that get passed on to all ratepayers. Source: https://www.bloomberg.com/graphics/2025-ai-data-centers-electricity-prices/

Other effects: Grid strain leads to more fossil fuel use or blackouts.

Example 1: Utilities request billions in rate increases nationwide.

Example 2: Data centers get lower rates while residents pay more for upgrades. Source: https://www.cnbc.com/2025/11/14/data-centers-are-concentrated-in-these-states-heres-whats-happening-to-electricity-prices-.html

Show Lake Tahoe picture here.

Power Company Dumps Tahoe residents for Data Center

Take for example tens of thousands of people who call Lake Tahoe home. They say that they were informed that local data centers now require so much electricity that their utility provider will no longer be able to keep them on the grid. Instead, they will have to find a new way to access the power lines.

This news not only leaves almost 50,000 people in the dark, but it could raise the price of the utility for them and the rest of the people who call Nevada home

Land Impacts: Show pictures of 5 largest Data Centers here during the show

Data centers need vast space for buildings, cooling, and power infrastructure.

Noise Pollution

Play example of loud noise here: (8) conspiracybot on X: “The sounds you hear living half a mile away from a Data center. No one should have to live like this. https://t.co/QGg2Y74tTb” / X

Constant hum from fans, generators, and HVAC (heating, ventilation, air conditioning) systems.

Light Pollution

Bright 24/7 security lights from large facilities.

Air Pollution and Excessive Heat

Backup diesel generators and power plant emissions release pollutants; servers produce heat.

Where is Greta Thunberg? Where is Bill Gates? Oh wait, Bill Gates has changed his stance on climate change in favor of data centers.

Social media reacts to Bill Gates softening climate change stance | Fox News