Cleaner fuels for ships provide public health benefits with climate tradeoffs.

The authors evaluate public health and climate impacts of low-sulphur fuels in global shipping. Using high-resolution emissions inventories, integrated atmospheric models, and health risk functions, the authors assess ship-related PM₂.₅ pollution impacts in 2020 with and without the use of low-sulphur fuels. Cleaner marine fuels will reduce ship-related premature mortality and morbidity by 34 and 54%, respectively, representing a ~2.6% global reduction in PM₂.₅ cardiovascular and lung cancer deaths and a ~3.6% global reduction in childhood asthma. Despite these reductions, low-sulphur marine fuels will still account for ~250k deaths and ~6.4M childhood asthma cases annually, and more stringent standards beyond 2020 may provide additional health benefits. Lower sulphur fuels also reduce radiative cooling from ship aerosols by ~80%, equating to a ~3% increase in current estimates of total anthropogenic forcing. Therefore, stronger international shipping policies may need to achieve climate and health targets by jointly reducing greenhouse gases and air pollution.

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    • © 2017 Mikhail Sofiev et al.
  • Authors:
    • Sofiev, Mikhail
    • Winebrake, James J
    • Johansson, Lasse
    • Carr, Edward W
    • Prank, Marje
    • Soares, Joana
    • Vira, Julius
    • Kouznetsov, Rostislav
    • Jalkanen, Jukka-Pekka
    • Corbett, James J
  • Publication Date: 2018

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  • English

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  • Accession Number: 01666045
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 13 2018 5:13PM