Telling a lie then saying 3 Hail Marys means you are forgiven for the lie, it doesn't fix the lie.
As such, planting a tree to be forgiven for going on a flight that burns carbon-laden jet fuel doesn't fix what you did.
Fossil fuels are excess carbon atoms sequestered safely deep inside the Earth. Unless you can find a way to put them back there, there's no fixing the situation. Planting a tree does capture carbon. However, when it dies and rots, all the carbon gets re-released over time back into the atmosphere. If you burn that wood, it happens much more quickly.
The only way to fix this problem is to stop using fossil fuels. There is no politically viable way for this to happen. The only way this is happening is if the planet gets depopulated of humans rapidly.
As such, planting a tree to be forgiven for going on a flight that burns carbon-laden jet fuel doesn't fix what you did.
Fossil fuels are excess carbon atoms sequestered safely deep inside the Earth. Unless you can find a way to put them back there, there's no fixing the situation. Planting a tree does capture carbon. However, when it dies and rots, all the carbon gets re-released over time back into the atmosphere. If you burn that wood, it happens much more quickly.
The only way to fix this problem is to stop using fossil fuels. There is no politically viable way for this to happen. The only way this is happening is if the planet gets depopulated of humans rapidly.