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
British Isles also taken to be part of the British Isles, even though, as islands off the coast of France, they do not form part of the archipelago. The oldest rocks in the group are in the north west of Scotland, Ireland and North Wales and are 2.7 billion years old. During the Silurian period the north-western regions collided with the south-east, which had been part of a separate continental landmass. The topography of the islands is modest in scale by global standards. Ben Nevis rises to an elevation of only , and Lough Neagh, which is notably larger than other lakes