How petrostates succeeded in watering down world’s plan to cut shipping emissions

The UN’s International Maritime Organization has just agreed to start charging ships for the greenhouse gases they emit. After decades of ineffective incremental tweaks to shipping emissions, the breakthrough came on April 11 at a summit in London. It makes shipping the first industry subject to a worldwide – and legally binding – emissions price.

The positive spin is that getting any sort of deal is a major win for multilateral climate action, especially considering two strong headwinds.

From within the meeting, there was sustained opposition to ambitious action from Saudi Arabia and other petrostates, as well as from China and Brazil. Second, the US had already disengaged from negotiations. Even so, from outside the meeting, the US administration’s tariff war and explicit threat to retaliate against states supporting a shipping pricing regime could have affected talks far more than they did.

But we’re not sure that this agreement can be considered a success. While there is little traditional climate change denial at the IMO, “mitigation denial” is alive and kicking. Mitigation denial means making lofty promises, often in line with scientific evidence, but not adopting concrete measures able to deliver on these targets. This is exactly what petrostates pushed the IMO to do last week.