Original: Much of western Warwickshire, including that area now forming part of Birmingham and the West Midlands, was covered by the ancient Forest of Arden (most of which was cut down to provide fuel for industrialisation).
Simplified: Historically much of western Warwickshire, was covered by the ancient Forest of Arden (although most of this was cut down to provide fuel for industrialisation in the 17th to 19th centuries).