Just arrived in #Milan #Italy and one of the first things my wondering, jet-lagged eyes see is a tram on the grass.
Thatβs the way to make green transit even greener. Put the tram/streetcar tracks on a carpet of grass or sedum. 2 kms of track creates 1.5 football fields' worth of green space, reducing air pollution and urban heat island effect. (Wild grass is especially effective.)