International shipping is on the rise in the Arctic region now that climate change regularly opens up transpolar sea routes in summer. That surge in traffic is leading to higher emissions of black carbon — colloquially known as soot, considered a “super pollutant.” Those emissions are escalating climate change and quickening sea ice and snow loss across the Arctic, which is already Earth’s most rapidly warming region. At a recent meeting of the International Maritime Organization (IMO), member states (led by Denmark, and including France, Germany and the Solomon Islands), proposed new regulations to require ships sailing in the Arctic to use fuels that emit low amounts of black carbon. But in February, global petrostates, including Russia, Saudi Arabia and the United States, opposed this effort, meant to slow Arctic warming. This delay follows a 2025 postponement of an IMO plan that had been widely expected to succeed, which would have accelerated the decarbonization of global shipping. That plan was blocked by the U.S. along with other oil-producing nations. The just-nixed Arctic proposal would have required ships sailing in the Far North to stop burning residual fuels — responsible for high black carbon emissions — and instead move to less polluting fuels. As spring approaches in the Arctic, an orange horizon backlights a ship’s stack emissions. The Research Vessel Polarstern embarked on a yearlong expedition to drift in Arctic sea ice called the Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC). Image by Julienne Stroeve/NSIDC via Flickr (CC…This article was originally published on Mongabay
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