This is what's happening where I live. The streets have far fewer trees now than they did 30 years ago but it's happened so gradually people haven't noticed it.
This is what the streets in my area used to look like:
|Adina Rd, City Beach (click to enlarge)|
Now they look like this...
|Goonang Rd, City Beach (click to enlarge)|
|Windarra Dve, City Beach (click to enlarge)|
|Larundel Rd, City Beach (click to enlarge)|
We're going backwards. We're losing street trees faster than we're replacing them. That's partly because we're not planting enough trees but also because the aftercare of the trees we do plant is insufficient to bring them to maturity.
However, the times they are a changin' and this will not be allowed to fly under the radar much longer. Parks and Gardens managers need to get on the front foot and start measuring their losses. Owning the problem is the first step towards solving it.