"Traffic in the Sky" by Jack Johnson, Album: On and on (2003)

There's traffic in the sky
and it doesn't seem to be getting much better
There's kids playing games on the pavement
Drawing waves on the pavement
Shadows of the planes on the pavement

It's enough to make me cry
But that don't seem like it would make it feel better
Maybe it's a dream and if I scream
it will burst at the seams and
this whole place will fall into pieces
and then they'd say...

Well how could we have known?
I'll tell them it's not so hard to tell
if you keep adding stones
soon the water will be lost in the well
Puzzle pieces in the ground
but no one ever seems to be digging

Instead they're looking up towards the heavens
with their eyes on the heavens
the shadows on the way to the heavens
It's enough to make me cry
but that don't seem like it would make it feel better

When there is an excess in use of an activity, no matter their nature, too many problems can be appeared and a consequent loss of life quality. With the increase in air transportation tons of fuel and CO2 emmisions are released in the sky, enhancing greenhouse effect, too much noise in nearby settlements, too much occupied free space for airports, runaways, etc at the expense of wetlands, agricultural land, recreation areas.

You can hear this song in youtube