Transportation accounts for 28% of USA's greenhouse gas emissions. And the point is that instead of increasing your carbon footprint because other sources are g

Transportation accounts for 28% of USA's greenhouse gas emissions. And the point is that instead of increasing your carbon footprint because other sources are greater, you should try to decrease it. Of course there are other issues of equal or greater importance, like mass consumption of cheap stuff manufactured in Asia and transported around the world, but choosing a Ford Explorer instead of a Ford Focus doesn't exactly help. https://en.wikipedia.org/wiki/Greenhouse_gas_emissions_by_the_United_States https://en.wikipedia.org/wiki/Greenhouse_gas_emissions_by_th...