The Trump administration has threatened countries supporting a proposed carbon tax on global shipping with visa restrictions, tariffs, and port fees. Despite this pressure, a slim majority of nations backed the original Net-Zero Framework at a recent U.N. meeting.
Ninety percent of global trade moves by ship, and the sector accounts for about 3 percent of worldwide carbon emissions. The International Maritime Organization was set to adopt a plan last year to reach net-zero emissions, but U.S. threats delayed progress for months and boosted weaker alternatives.
