The others are Bristol, Glasgow and Ljubljana.
The selection was made by an independent panel of 12 experts on the basis of the following indicators:
- Local contribution to global climate change
- Local transport
- Green urban areas incorporating sustainable land use
- Nature and biodiversity
- Quality of local ambient air
- Quality of the acoustic environment
- Waste production and management
- Water consumption
- Waste water treatment
- Eco innovation and sustainable employment
- Environmental management of the local authority
- Energy performance.
The four contestants will now present their cases and their communication strategies to an international jury in Brussels on 24 May.
The final choice of European Green Capital 2015 will be announced at an official award ceremony on 14 June 2013, hosted by the current European Green Capital, Nantes.
To date, five cities have been awarded the title of European Green Capital: Stockholm 2010, Hamburg 2011, Vitoria-Gasteiz 2012, Nantes 2013, and Copenhagen 2014. The Award is presented to a city in the vanguard of environmentally friendly urban living.
The jury comprises representatives from the European Commission, the European Parliament, the Committee of the Regions, the European Environment Agency, ICLEI – Local Governments for Sustainability, the Covenant of Mayors Office and the European Environmental Bureau.