Paris has started planting its first urban forest as it aims to become one of Europe’s greenest cities. By the end of spring there will be 470 trees, including oaks, ashes, maples and wild cherry, in an area that used to be a busy roundabout. “This will (also) considerably reduce air pollution,” Paris mayor Anne Hidalgo says. “Wherever we create this type of forest or develop these sites, it allows us to have areas for walking and cycling, and we will be able to reduce the use of cars.” Paris has planted tens of thousands of trees since 2020In 2020, the Socialist Party mayor was re-elected on …