Trendwatch: Panama Canal postpones third round of vessel draft restrictions; Canada retaliatory tariffs against U.S. take effect; Global maritime decarbonization stalls despite the accelerating impact of climate change

Panama Canal postpones third round of vessel draft restrictions 

The Panama Canal Authority (ACP) is postponing its latest planned draft restrictions for the canal's Neopanamax locks, providing carriers with much-needed relief as delays continue to stack up at the waterway. 

The ACP initially lowered maximum allowable drafts for Neopanamax vessels from 49.5 to 49 feet at the start of the summer, and then a second time to 48.5 feet as drought conditions pushed down water levels at the canal's locks. A third reduction to 47.5 feet had been scheduled for October, but has now been delayed indefinitely, following a review of water levels at Gatun Lake, and updated weather projections for the fall. 

Canada retaliatory tariffs against U.S. take effect 

Canada's retaliatory tariffs against the United States have taken effect, covering up to $20 billion in American products. 

According to The Guardian, Canada's levies range between 15% and 50%, targeting steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics. The tariffs come in response to similar Trump administration levies against Canada that came into force on August 22. 

In a video address posted on September 8, Canadian Prime Minister Mark Carney detailed a need to become less reliant on trade with the U.S., stating that "no country can ever hold us hostage." 

Air cargo trends and what they could mean 

After uneasy periods, punctuated by sharp declines and rapid rises, air cargo demand appears to be finally stabilizing. This is a relief to multiple sides of the air freight industry, where the instability and potential long-term damage have been watched with bated breath. Questions, however, continue to remain: How long will this ‘stability’ last? Will the chaotic state of the market return? And what can, if anything, the air cargo community do about it? 

According to WorldACD Weekly Air Cargo Trends #34 – August 17 to 23, 2026, there has been, for instance, stabilization of the air cargo tonnages going from China and Hong Kong to Europe. This comes after several straight weeks of declines, influenced by the new European Union import duty rules. Brandon Fried, of the AirForwarders Association, corroborated this, saying, “Yes, the WorldACD numbers match what our members are seeing. Demand and pricing have leveled off after the usual start-of-year dip, and worldwide rates have sat around levels still well above where they were a year ago.” 

While, this is good news for the industry, it isn’t the whole story.

Global maritime decarbonization stalls despite the accelerating impact of climate change 

Negotiations at the IMO have drawn a blank for the third meeting in a row, as US and Saudi-led efforts to scupper progress were successful. With delegates from vulnerable countries highlighting the tragic cost of this year’s climate disasters, action is far too slow, warns T&E. 

While pragmatic negotiators, including the EU, signalled openness to compromise measures such as avoiding a centralised fund and weakening greenhouse gas targets, US and Saudi negotiators largely held their ground. T&E urged negotiators not to cave to the Trump administration’s crusade to sacrifice ambitious targets in favor of fossil gas and crop biofuels - a lose-lose deal for the climate and for future-proofing the industry.

U.S. hits five more Iranian tankers after second attack on U.S. warship 

In response to a second attempted Iranian missile strike on U.S. Navy warships on Monday, U.S. forces have hit another five Iran-linked tankers inside of the blockade line, according to U.S. Central Command. Iran subsequently warned mariners to prepare for retaliatory strikes on GCC-linked merchant shipping.  

Last weekend, Iran launched ballistic missiles at a U.S. aircraft carrier and a destroyer, striking neither but drawing a U.S. retaliatory attack that sank one Iranian tanker and damaged two more. A second cycle of strike/counterstrike activity began Monday when Iran "tested" a new model of antiship missile against an unspecified U.S. Navy vessel, per top Iranian security official Major General Mohsen Rezaei.

Shipping nations call for cooperation warning of emerging two-tier system 

A coalition of 18 shipping nations issued a joint statement calling for greater cooperation and alignment with international rules, warning that recent global events demonstrate how fragile the system of maritime trade can be. The group warns that the sanction-busting shadow fleet, wars, and discriminatory trade measures are creating a parallel system within global shipping, a two-tier system, where one is governed by rules and the other by opacity, but where ultimately both are weakened. 

“The answer to these challenges is not necessarily more rules nor to rely on a patchwork of unilateral actions, but rather better alignment of existing international rules,” writes the Consultative Shipping Group. Established in the 1960s and with participation of 18 shipping nations in Europe, Asia, and North America, the group serves as a forum for discussion and coordination of maritime policy issues.