Politics in the British Isles projects amongst the various countries in the Isles have been undertaken, often around infrastructure and energy. For example, the governments of Ireland, Scotland, and Northern Ireland are collaborating on the ISLES project, which will facilitate the development of offshore renewable energy sources, such as wind, wave and tidal energy, and renewable energy trade between Scotland, Republic of Ireland and Northern Ireland. Through the auspices of the British-Irish council, Ministers from the UK, Ireland, Isle of Man and the Channel Islands have agreed to work on energy cooperation and development through what is called the All Islands Approach (AIA), facilitating closer
Stone circles in the British Isles and Brittany the British Isles, architectural changes were made to the style of chambered tomb, which may have been a forerunner of the later circular design of the stone rings. In the later Clyde tombs of south-western Scotland and the court-cairns of northern Ireland, crescent-shaped forecourts were constructed inside the tombs. This would have enabled more people to enter the tomb and take part in any rites there in sunlight. During the Early Neolithic another form of monument was also constructed in the British Isles, now known by archaeologists as causewayed enclosures. These consisted of massive circular ditch-and-bank earthworks. Construction of causewayed