Localize manufacturing?
With those huge cargo ships producing lots of CO2, wouldn't the best impact be to reduce the use of those ships?
Try not to ship parts to get assembled into another part, to get shipped again and again back to the origin, and then final assembly and packaging and shipped to the store?
I know it's naive to think we can build manufacturing plants at the source of raw materials, and near consumers, but there should be a better balance?