Trump is trying to kill a carbon tax on global shipping. He may not succeed.

Trump is trying to kill a carbon tax on global shipping. He may not succeed.

Ninety percent of global trade is conducted by giant ships that crisscross the globe, delivering containers of jet fuel, electronics, clothing, and many other goods every day of the week. Seafaring trade on this scale has brought the cost of many products down dramatically, but those ships have historically run on a very dirty fuel — essentially the sludge left over from refining crude oil — causing the shipping sector to contribute about 3 perc…