In such a system, imports from countries that do not price
carbon emissions would be subject to a tariff
equivalent to the price imposed on the
carbon content of such goods made in Canada, counting the
carbon emitted to produce goods and to transport them here.
His calculations, based on 2008 figures for the concentration of CO2 in the atmosphere, show that even assuming a lower estimate of forest
carbon content, total and
equivalent CO2 would level out at 476 parts per million, even if we stopped all fossil fuel use immediately.