Experts have called on a major UK city to introduce harsher punishments for motorists who leave their engines idling. Scottish Greens councillor Blair Anderson described the level of enforcement as “minuscule”, with only a small number of council staff currently able to issue £20 fines. He suggested empowering parking wardens to issue tickets, saying it would be “preferable if parking wardens could walk down the street and issue tickets”. Anderson is urging the Scottish Government to grant councils more powers to tackle the issue of drivers causing unnecessary pollution. Do you have a story yo…