Protests against data centres took place across Finland over the weekend, with demonstrators calling on the government to halt new construction projects until stronger regulations are introduced.
Around 1,300 people gathered in Helsinki on Saturday afternoon, according to police estimates. Demonstrations were also held in Lahti, Tampere, Oulu, Jyväskylä and Turku, according to the Finnish Association for Nature Conservation, one of the organisations behind the protests.

The demonstrations reflect growing public concern about the rapid expansion of data centre projects in Finland. Protesters argue that new developments are being announced faster than authorities can establish rules to manage their environmental and energy impacts.
Data centres are facilities that house computer systems and servers used to store, process and manage digital information. They support many everyday online services, including cloud storage, streaming platforms and artificial intelligence applications. However, operating these facilities requires significant amounts of electricity and, depending on their cooling systems, water.
Demonstrators are particularly concerned about the pressure that an expanding data centre industry could place on Finland’s natural environment and electricity supply. They also argue that the country needs clearer rules before approving more projects.
Sakari Bister, one of the organisers behind the “Rein in Data Centres” citizens’ initiative, said his concerns began during the summer when he started paying closer attention to developments in the sector. He soon realised that other people shared his worries.
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“Looking at what’s happened in recent months, what data centres are doing to nature and overall consumption, and how much it’s frustrating people, it’s become really important to me that we secure enough electricity and ensure the situation doesn’t spiral out of control,” Bister said.
The “Rein in Data Centres” initiative is part of a wider effort to bring greater public attention to the consequences of rapid data centre expansion. Its organisers want the authorities to address concerns about electricity consumption, environmental protection and the pace at which new facilities are being planned.
The protests across six Finnish cities show that the debate over data centre development is no longer limited to technology companies, investors and policymakers. Residents and environmental groups are also demanding a greater say in how the country’s digital infrastructure develops.


