The IMO is introducing a global carbon tax on maritime shipping, questions are arising about who will bear the cost – and how regions like the Caribbean will be affected. Experts are divided, and while global support for the measure is strong, dissent from countries like the United States casts uncertainty on the long-term rollout.
At the center of this debate is a proposed tax on emissions from cruise and cargo ships, projected to generate between $11 billion and $13 billion annually, or approximately 0.8% of the $1.53 trillion in global maritime trade. The aim: to hold polluters accountable and drive sustainable change in the shipping industry. But concerns about equity, particularly for vulnerable regions like the Caribbean, remain.
“This tax will be passed on and so it is the consumers who will bear this cost again,” said Corbett Poynton of Green Energy Management. “Like the cost of energy, the price of all goods will increase again at a time of stress for the general populous.”
That concern is not without merit in the Caribbean, where small island economies heavily depend on imported goods and cruise tourism. Any shift in shipping costs – whether on cargo or cruise lines – has a downstream effect on everyday prices, from groceries to building materials. Tourism-dependent economies could also feel a pinch if cruise lines decide to reroute to avoid taxed regions.
Yet, Ethan James, also of Green Energy Management, argues that the burden may not fall as heavily on the Caribbean as feared.
“While I agree that the tax would likely be passed on to the people it is meant to help to some extent,” he said, “the larger proportion of those ‘passed-on’ taxes, I’ argue, would not be borne by the Global South, as the estimated $1.53 trillion in global trade (including cruise and cargo) occur in the Global North.”
According to James, because the vast majority of global maritime trade is concentrated in and between Global North economies, those consumers are expected to absorb most of the impact.
He also pointed to precedent, noting that despite U.S. withdrawal from climate agreements like the Paris Accord, other signatories have carried on.
“Indeed, the implications of the US objections are valid… But, the decision – at this stage – is to proceed forward with that tax. The global economy and geopolitics are in a state of flux as we can all see. Who knows how it will play out.”
Still, Poynton raised valid logistical and policy questions that could directly impact the Caribbean’s port operations and shipping lanes:
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Will U.S.-flagged vessels operating in Caribbean waters be taxed?
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Is the levy applied based on a ship’s flag state, or entry into a tax-compliant port?
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Will non-compliant U.S. ships gain an advantage over taxed European and Chinese shipping?
These questions are especially relevant for Caribbean nations that rely on both U.S. and European trade routes. If the tax structure unintentionally favors U.S. shipping – due to non-participation – Caribbean nations might find themselves trading cost efficiency for environmental responsibility.
A Delicate Balance
The Caribbean sits at the intersection of global environmental urgency and local economic fragility. While the carbon tax could unlock funding for green infrastructure and adaptation efforts, the region must remain vigilant to ensure it doesn’t become collateral damage in the battle between industrial giants.
As Ethan James suggests, “For now, there is sufficient global support to move forward.” But how the Caribbean prepares for – and negotiates within – this evolving landscape will determine whether it emerges as a beneficiary of climate action or a victim of unintended consequence.
