LKAB says ground deformation from the Kiruna iron ore mine will extend farther than previously forecast, forcing relocation of about 2,700 homes and 6,000 residents. The expanded impact zone must be replaced within 10 years at an estimated cost of SEK 22.5 billion.

A small soil cavity in the UAF North Campus boreal forest remains open all winter, maintaining a steady temperature and emitting high CO2 levels, which is unusual for its self-sustaining nature and potential implications for permafrost research.