[Toskrin]

Meanwhile 200 passengers in Heathrow are standing at the gate wondering “Where’s our plane?”

[Reeses]

Apparently more people are leaving from the socialist utopia of Europe for America than are going the other way. If you average the load for both directions the carbon foot print is reasonable. A normally loaded airliner going at 500mph gets much better gas mileage and lower CO2 emissions per passenger than a Toyota Prius on meandering roads at 50mph.