Pembrokeshire control; there were 34 independent councillors. In 2009, the question of county names and Royal Mail postal addresses was raised in the Westminster parliament; it was argued that Royal Mail's continued use of the county address Dyfed was causing concern and confusion in the Pembrokeshire business community. In 2018, Pembrokeshire County Council increased council tax by 12.5 per cent, the largest increase since 2004, but the county's council tax remains the lowest in Wales. The Pembrokeshire (Communities) Order 2011 established the most recent arrangement of communities (the successors to civil parishes) in the county which have their own councils; see
Pembrokeshire to its proximity to the relatively warm Atlantic Ocean. Inland, average temperatures tend to fall 0.5 °C for each 100 metres increase in height. The air pollution rating of Pembrokeshire is "Good", the lowest rating. The rocks in the county were formed between 600 and 290 million years ago. More recent rock formations were eroded when sea levels rose 80 million years ago, at the end of the Cretaceous Period. Around 60 million years ago, the Pembrokeshire landmass emerged through a combination of uplift and falling sea levels; the youngest rocks, from the Carboniferous Period, contain the Pembrokeshire Coalfield. The