Acarbon tax is sometimes opposed by those on the left of the political spectrum because it is regressive. what does this mean? relatively more of a carbon tax is paid by poor people than by rich people, in comparison to a tax on wages relatively less of a carbon tax is paid by poor people than by rich people, in comparison to a tax on wages relatively the same amount of a carbon tax is paid by poor people than by rich people, in comparison to a tax on wages a carbon tax returns us to the days of yore when everyone was happy a carbon tax returns us to the days of yore when everyone acted like a caveman