If I have a choice between two flights A and B, based exclusively on CO2 emissions, the only thing my selection changes is my body weight/luggage added to the flight. But the emissions calculation (as I understand it) is the total anticipated CO2 of the flight divided by the number of seats. And the bulk of those emissions come from lifting the plane itself, not the individual passengers.
The plane still flies whether or not I’m on it, though. So my choice of flight does not really impact emitted carbon.
If I have a choice between two flights A and B, based exclusively on CO2 emissions, the only thing my selection changes is my body weight/luggage added to the flight. But the emissions calculation (as I understand it) is the total anticipated CO2 of the flight divided by the number of seats. And the bulk of those emissions come from lifting the plane itself, not the individual passengers.
The plane still flies whether or not I’m on it, though. So my choice of flight does not really impact emitted carbon.