[defconw]

That was my first thought. Will DeCaprio be flying in to do the promotion? I am so weary of idiots!

[Ben Ficklin]

Emissions from passenger aircraft measured as per passenger mile vary a lot with occupancy.

But the main culprit is short flights or short hops. Most of the fuel/energy used and emissions are from taking off and getting up to altitude.

First you have to break it out as stationary sources and mobile sources

Then break out the mobile sources as trucks, cars, busses, trains, aircraft, boats etc. But among these you have differentiate between freight and passenger.

In the overall scheme of things passenger aircraft is lower percent, but thru the years they have made more efficient engines, lighter aircraft, and higher occupancy rates.