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Decarbonizing shipping to cost over $100 bn per year: UN

The shipping industry accounts for nearly three percent of all greenhouse gas emissions globally
The shipping industry accounts for nearly three percent of all greenhouse gas emissions globally.

The UN called for rapid decarbonization of the shipping industry on Wednesday, warning that the price tag could top $100 billion a year as the sector's emissions continue to swell.

The UN's trade and development agency, UNCTAD, highlighted the vital role shipping plays in the , with over 80 percent of all traded goods in the world moved by sea.

But it also accounts for nearly three percent of all greenhouse gas emissions globally.

At a time when industries are under pressure to reduce their to avert catastrophic climate change, emissions from the global maritime fleet has increased by 20 percent in the past decade.

"We call for global action to decarbonize shipping," UNCTAD chief Rebeca Grynspan told reporters, presenting an on the industry.

"Balancing , regulatory compliance and economic demands is vital for a prosperous, equitable and resilient future for maritime transport," she said.

The agency is calling for a rapid shift towards cleaner fuels across a shipping industry, where nearly 99 percent of the global fleet remains reliant on conventional fuels.

"Fuel transition in shipping is still in its infancy," Shamika Sirimanne, head of UNCTAD's technology and logistics division, told reporters.

UNCTAD cited some promising developments, including that 21 percent of vessels currently on order are designed for alternative fuels.

But the agency stressed the need to step up the pace, while acknowledging that "the transition comes with substantial costs".

The UNCTAD report found that up to $28 billion would be required annually to decarbonize ships by 2050.

And even more investments—as much as $90 billion—would be needed each year to develop the necessary infrastructure for 100 percent carbon neutral fuels by then, it said.

In addition, full decarbonization could raise annual expenses by as much as 100 percent, potentially taking a heavy toll on developing states and other that rely heavily on maritime transport.

Net-zero target

The International Maritime Organization clinched a deal in July to cut the shipping industry's total annual emissions by at least 20 percent by 2030 and by at least 70 percent by 2040 compared to 2008 levels.

The revised strategy also aims for the industry to reach net-zero emissions "close to" 2050. That compared with the prior target for a 50-percent reduction by mid-century.

The IMO is discussing economic measures to generate funds to help support poorer countries' decarbonization efforts and close the price gap between traditional and alternative fuels.

To ensure an equitable transition, UNCTAD is also calling for a universal regulatory framework, applicable to all, to help avoid a "two-speed decarbonization process".

Clear regulations would help remove a large element of uncertainty facing the world's ship owners, many of whom are preparing to renew ageing fleets.

At the start of 2023, the world's commercial ships were on average 22.2 years old, with more than half of the global fleet over 15 years of age.

"This is a challenge and an opportunity," Grynspan said, pointing out that it could provide incentive to build more sustainable ships.

But given the current lack in clarity regarding regulations and incentives to shift to and green technologies, ship owners in need of renewing their fleet could also opt for old-style ships that could roam the seas for decades.

Longer routes

Wednesday's report highlighted that the global remains resilient despite challenges stemming from the Covid pandemic and Russia's war in Ukaine.

Global maritime trade volumes and containerised trade are both forecast to grow this year after declining in 2022.

The report also pointed to how the Ukraine war had "led to changes in shipping patterns and increased the distances traveled for commodities, especially oil and grain".

Global oil cargo distances reached an all-time high last year.

Grain shipments have also traveled further than in any year on record in 2023 as countries that have traditionally sources wheat and other products form Ukraine have been forced to find new suppliers such as the United States and Brazil, UNCTAD said.

© 2023 AFP

Citation: Decarbonizing shipping to cost over $100 bn per year: UN (2023, September 27) retrieved 8 December 2023 from
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