In Mantsala, Finland, an elaborate system of pipes and pumps is harvesting waste heat from a 75-megawatt data center and feeding it to homes. Last year, it heated the equivalent of 2,500 homes, about two-thirds of the town’s needs. As the global demand for computing brings more server farms to the Nordic region — attractive to the tech industry for its frigid climate and low electricity prices — companies are tapping into cities’ district heating systems to repurpose waste heat.

While no data center is good for the environment due to the immense hunger for energy, heat recovery technology can help blunt the impacts. Read more from Lars Paulsson, Kari Lundgren and Kati Pohjanpalo today on CityLab: Power-Hungry Data Centers Are Warming Homes in the Nordics

— Rthvika Suvarna

More on CityLab

NYC Ordered to Hand Control of Rikers Jail to Outside Manager
The judge’s ruling caps a decade-long court-ordered monitorship that consistently found rampant violence and other ills in the city’s lockups.

Vienna Embraces Heat Pumps to Ditch Russian Gas
The Austrian capital has a $21 billion plan to end its dependence on imported natural gas with heat pumps, boreholes and energy efficiency.

In Court, Trump Is Losing More Than He’s Winning
President Donald Trump’s expansive use of executive power faced at least 328 lawsuits as of May 1 — with judges halting his policies far more often than they allowed them.

• License plate reader company flock is building a massive people lookup tool, leak shows (404 Media)

• How MapQuest took the wrong path forward (Tedium)

• When getting out of jail means a deadly walk home (New York Times)

• How a ‘We Buy Ugly Houses’ franchise left a trail of financial wreckage across Texas (Dallas Morning News)

• RFK Jr. bathes in polluted DC creek on family outing (Washington Post)

• Economics Daily for what the changing landscape means for policymakers, investors and you
• Green Daily for the latest in climate news, zero-emission tech and green finance
• Hyperdrive for expert insight into the future of cars
• Design Edition for CityLab’s newsletter on design and architecture — and the people who make buildings happen
• Working Capital for making sense of the evolving workplace

Explore all Bloomberg newsletters.