Planes? A bit of quick searching backs up what I thought -- ships are way less carbon-intensive than planes, though, to my surprise, less efficient than rail: http://carbonfund.org/how-we-calculate
And while I'm all for regulation, I'm basically pessimistic. Then again, overpopulation and nuclear escalation turned out less bad than I expected, so what do I know?
The market is not very good at correcting for the future. Regulatory pressure would be the primary mechanism for change.
But again, if Apple wanted to be more regulated they wouldn't be manufacturing in China.