Resilience hub 3
Ranua & Pudasjärvi
Finland
Lake ecosystem restoration and circular bioeconomy for remote Arctic communities on the frontline of climate change.
About Ranua & Pudasjärvi
Ranua and Pudasjärvi are sparsely populated boreal municipalities in northern Finland. The region is warming at twice the global average melting ice, rising temperatures, and erratic precipitation threaten ecosystems, agriculture, reindeer herding, and livelihoods. Lake eutrophication from nutrient runoff is a growing challenge and an untapped circular resource.
Climate Context
Key Challenges
Rapid Warming
Northern Finland warms faster than the global average, with visible melting ice and ecosystem shifts.
Flooding & Drought
Variable precipitation drives both severe flooding and summer drought, threatening agriculture and infrastructure.
Lake Eutrophication
Nutrient runoff degrades lake ecosystems, reducing water quality and biodiversity.
Remote Vulnerability
Sparse population and remoteness compound the difficulty of climate adaptation and service delivery.
Solutions
Lake Restoration & Circular Bioeconomy
NURISH implements lake rehabilitation through sludge extraction from eutrophied sediments for biogas production. The approach simultaneously restores water ecosystems, generates renewable energy, and produces organic amendments for local agriculture closing nutrient cycles in a genuinely circular rural bioeconomy.
- Restored lakes: Improved biodiversity, water quality, and ecosystem function in targeted lake systems.
- Renewable biogas: Energy produced from lake sludge contributing to local energy resilience.
- Circular agriculture: Organic soil amendments from sludge supporting sustainable farming.
- Replication blueprint: Documented methods enabling other northern communities to adopt the circular model.
Other Resilience Hubs
Explore the Pillars
See how these frameworks are applied through NURISH’s Pillars.