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Japan's First Bio-Coke Steam Locomotive

TOKYO - Japan has embarked on a pioneering experiment in Tochigi Prefecture, using plant-based fuel, known as 'bio-coke', in a steam locomotive for the first time in the country.

Steam locomotives traditionally run on steam generated by burning coal. However, Tobu Railway is testing the use of bio-coke for 40% of the fuel in its tourist steam locomotive, the 'SL Taiju'. This experiment aims to evaluate the practicality of bio-coke, focusing on combustion efficiency and its impact on the boiler.

The trial, set to last approximately one year, is expected to reduce CO2 emissions by about 150 tons annually.

During the experiment, the number plates of steam locomotives using bio-coke will be colored green to signify their eco-friendly nature.

Additionally, Tobu Railway plans to replace diesel in diesel locomotives with a mix of biodiesel and light oil. This initiative is projected to further cut CO2 emissions by 2.5 tons each year.

These efforts mark a significant step in Japan's pursuit of sustainable and environmentally friendly rail transport solutions, showcasing innovation in traditional steam locomotive technology.

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Japan’s World Cup campaign ended in the cruelest possible fashion on June 29, as Gabriel Martinelli scored in the fifth minute of stoppage time to give Brazil a 2-1 victory over the Samurai Blue in their knockout match in Houston. Japan had led in the first half and were still level at 1-1 in the final moments, but Martinelli’s late strike sent Brazil into the Round of 16 and eliminated Japan from the tournament.

Strong earthquakes have continued to shake parts of Japan in recent weeks, with 11 temblors measuring lower 5 or above on the Japanese seismic intensity scale recorded across the country since April 2026.

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A section of stone wall at Hikone Castle, one of Japan’s few surviving original Edo-period castles and a National Treasure whose main keep remains intact more than 400 years after its construction, collapsed after heavy rain caused by Typhoons No. 7 and No. 8, Hikone city officials said.

Japan advanced to the knockout stage of the World Cup after a 1-1 draw with Sweden on June 25, finishing second in Group F and setting up a Round of 32 clash with Brazil in Houston.

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