Canadian drivers don't care about the environment...very much

Canada has roughly the same population as the state of California. Even the densest cities of Canada cannot match California's concentration of cars, trucks, small and large engines, heavy equipment and other 'infernal' combustion engine output. Divide the land mass of Canada by the land mass of California and you will see how we remove ourselves from the problem. The population densities along the southern States of America, the Eastern Seaboard, and California drive most of the contributing vehicles. Prevailing winds and weather systems carry off and- over- much of these exhaust fumes. Canadians are smugly indifferent to what we are doing, and per capita, we are the richest and most carbon ignorant people of the planet.