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The Case of São Paulo: Aligning subnational implementation for climate adaptation with national priorities
São Paulo, Brazil São Paulo published its State Climate Adaptation and
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The Case of Gauteng: Aligning subnational implementation for climate adaptation with national priorities
Gauteng, South Africa Gauteng connects South Africa’s national adaptation priorities with
- Case Study Database
The Case of Lombardy: Aligning subnational implementation for climate adaptation with national priorities
Lombardy, Italy Lombardy adopted its first climate adaptation strategy in 2014,
From Waste to Resource: How States and Regions Are Leading on Zero Waste
Goiás, Brazil, Cameroon, Canada, SpainStories from states and regions for the Global Climate Action Agenda
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30×30 Initiative: California’s Subnational Model for Biodiversity Action
California, United States California’s 30×30 initiative is a leading example of
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BioClima: Mobilizing Private Investment for Biodiversity in Lombardy
Lombardy, Italy “Call for BioClima” addresses the urgent challenges of biodiversity
Paraná Pioneers the Use of Biodiversity Credits as a New Financial Model for Conservation
Paraná, BrazilAt COP16, Paraná launched a pioneering subnational policy on biodiversity credits, creating financial incentives for nature protection.
Goiás’s Zero Dumpsite Journey: From Open Dumps to a Pioneering Regional Waste Model
Goiás, BrazilGoiás is consolidating a historic transformation in municipal solid waste management.
- Second in the world
Wales’ Circular Economy Journey: From Industrial Revolution to World-Leading Recycler
Wales, United KingdomWales built its industrial history on extracting and consuming raw materials
Québec Becomes the First Region to Support Global Biodiversity Fund with Historic Investment in Nature
Québec, CanadaAt COP16, the Government of Québec became the first subnational government to contribute to the Global Biodiversity Framework Fund (GBFF).
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#RegionsVoice 2026
Explore how Regions4 members and partner regions are turning global goals
BioClima: Mobilizing Public and Private Finance for Biodiversity in Lombardy
Lombardy, ItalyLombardy Region’s BioClima model combines public funding and private investment to protect biodiversity and sustain long-term action.