Requiem for Fossil Fuels by O+A

Mourn the passing of greenhouse-gas emitters at this sound installation by artists Bruce Odland and Sam Auinger, which takes its cue from a memorial mass. The voices of opera singers Hai-Ting Chinn, Martha Cluver and Mark Uhlemann are interwoven with the sound of helicopters, jets, cars, buses, horns and sirens.