Transcription of The climate implications of using LNG as a marine fuel
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The climate implications of using LNG as a marine fuel
JANUARY 2020 WORKING PAPER 2020-02 The climate implications of using LNG as a marine fuelAuthors: Nikita Pavlenko, Bryan Comer, PhD, Yuanrong Zhou, Nigel Clark, PhD1, Dan Rutherford, PhDKeywords: shipping, LNG, methane slip, life-cycle analysisSummaryAlthough liquefied natural gas (LNG) contains less carbon per unit of energy than conventional marine fuels, its use might not reduce greenhouse gas (GHG) emissions on a life-cycle basis. This paper compares the life-cycle GHG emissions of LNG, marine gas oil (MGO), very low sulfur fuel oil, and heavy fuel oil when used in engines suitable for international shipping, including cruise ships. The analysis includes upstream emissions, combustion emissions, and unburned methane (methane slip), and we evaluate the climate impacts using 100-year and 20-year global warming potentials (GWPs).
climate implications of using LNG as a marine fuel therefore requires comparing the life-cycle GHG emissions of LNG to those of conventional marine fuels. This is a timely issue. LNG represented less than 3% of ship fuel consumption in the ... shipping is not explicitly included in the Paris Agreement, ratifying parties agreed
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