Carbon Bootprint
Were not the remains of TE901 (the plane, not the pax) left in place on Mt. Erebus?
Yes, probably the bulk of the wreckage from the accident is still there. However from the nature of the crash and subsequent severe fire, the significant work done to recover and identify the as much of the remains of the passengers and crew as could be recovered, including removal of surface and near-surface wreckage, I think it may well be a case that other work to dig down into the melted ice & snow layers over a very large area to recover the rest would cause more damage to the environment than leaving the remainder in-situ.
A plane like this one, sitting on the surface, essentially still in one piece isn't in the same category as the unfortunate TE901.