A new study shows major Australian cities are suffering an overall loss of green space –
although some areas are doing better than others.
If planning decisions properly considered the value of trees in a city, we could have a modern transport system and tree-lined views to enhance the journey.
Cities are aiming to increase their tree cover. But there will need to be more than trees to encourage wildlife to return.
Invasive pests threaten the world's much-needed planted forests, as trees are declining.