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A comment on Fossil Fuels Are 40% of Freight Shipping Tonnage, but Half Its Fuel Use. Parent comment

Re:Fossil Fuels Are 40% of Freight Shipping Tonnage, but Hal... by slavik81 on Sunday June 21, 2026 @04:54PM (#48622504)
Natural gas burns at ~2200 K. Ambient temperature is ~300 K. 1 - 300/2200 = 86% as the Carnot limit?
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