It says: "IT IS GREEN THINKS NATURE EVEN IN THE DARK". For the past few years the 3m red letters have illuminated Glasgow's skyline. By now, millions of motorists will have passed the sign at ...

At night the design can be seen for miles across Glasgow Above the busiest stretch of road in Scotland, a giant neon sign greets motorists with a bold and puzzling message. It says: "IT IS GREEN ...

For the past few years a large red neon sign has illuminated Glasgow's skyline. It offers a bold and puzzling message to those travelling on Scotland's busiest motorway: "IT IS GREEN THINKS NATURE ...