By looking at the EU CO2 spot prices we can get a quick glimpse on how much does the plane ticket matter compared to things like using Coal as power.
A plane ticket from Finland to Japan would go from ~1000€ into 1020€ if it would pay the same CO2 emission prices as coal power pays. So basically nothing.
We should focus on reducing the big CO2 emission sources instead of these. But it is understandable why people do things like this. They are really easy way to signal one cares about the environment, even though they are basically meaningless as the same person enjoys bit lower electricity prices due to cheap coal that pumps way more CO2 than the flights ever would.
A plane ticket from Finland to Japan would go from ~1000€ into 1020€ if it would pay the same CO2 emission prices as coal power pays. So basically nothing.
We should focus on reducing the big CO2 emission sources instead of these. But it is understandable why people do things like this. They are really easy way to signal one cares about the environment, even though they are basically meaningless as the same person enjoys bit lower electricity prices due to cheap coal that pumps way more CO2 than the flights ever would.