5. Celine Dion, 'Skies of L.A.'
Her heart will go on, but her lungs are full of smog. Canada's biggest Nineties export doesn't know if "tomorrow has a day" and piano keys are tinkling delicately: all is about par in the Dion universe, but this 1997 track is a pretty sleepy charge against air pollution. Then again, if she truly "can't see the sun through the sky from here," the clouds of exhaust have either gotten exponentially worse in Hollywood, or it is nighttime.
Listen to "The Corniest Pro-Environment Songs" Playlist: