A wind farm
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Measuring devolution: Environment proves a battleground

11 June 2014 Last updated at 20:12 BST

BBC Wales is reporting on how 15 years of a devolved Welsh government has affected the country.

One of the most contentious areas has been the environment, with Wales rich in renewable energy sources and the industry growing quickly, there has been opposition to many new developments.

Environment correspondent Iolo ap Dafydd has been in Swansea.