Baffin Bay Geological Survey has estimated that at least 13% of the world's undiscovered oil deposits and 30% of the world's undiscovered gas pockets are located in the Arctic, with the seas around Greenland potentially holding large amounts of natural gas and lesser amounts of crude oil and natural-gas liquids. Accordingly, the Greenland authorities have offered a large number of off-shore concessions for potential hydrocarbon (oil and gas) extraction. The largest concession-areas are located in seas west of Greenland; primarily in Baffin Bay and the Davis Strait, but with several smaller concessions in the Greenland Sea in the east also. Baffin Bay
Church Island (Menai Strait) the two World Wars. This is also the best place on the island from which to view the Menai Strait and the two bridges that cross it. In 2002, little egrets bred in Wales for the first time on a small islet just off Church Island. Church Island (Menai Strait) Church Island () is a small island in the Menai Strait on the shores of Anglesey to which it is attached by a short causeway that is reachable only on foot off the Belgian Promenade. The whole of the island is taken up with St Tysilio's church, constructed in the