Littering the north of England, incomplete office blocks and stalled housing development schemes await their fate. Reminders of the interventionist economic policies of governments past, they haunt the landscape like relics from another era.
What could cause such a fuss, you might wonder, that would result in 400,000 people, including the likes of the Archbishop of Canterbury, the National Trust and Dame Judi Dench to campaign so vociferously? What would lead The Daily Telegraph to say they’re a national treasure that must be saved and the BBC to question why we’re a nation of tree-huggers?