The heating has been turned down at Buckingham Palace and other royal homes to cut emissions, reflecting the King’s green credentials, royal accounts have shown.
Guests, staff and the royal family were living with temperatures set at 19C during the winter and a few degrees lower when rooms were empty.
Charles spoke extensively before becoming King about the importance of the environment, tackling climate change and protecting wildlife, and even recycled his Clarence House bathwater and runs his Aston Martin on sustainable fuel.
