地理漫步·世界地理英语30篇（3）
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The Rhine: Europe’s Liquid Highway
莱茵河：欧洲的液态高速公路
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Flowing 1,233 kilometers from the Swiss Alps to the North Sea, the Rhine carries more cargo than any other European river.
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Barges transport coal, grain, chemicals, and cars—accounting for over 40% of inland freight in Germany and the Netherlands.
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Treaties signed since 1815 have kept the Rhine open to all nations, making it a rare example of long-term transboundary cooperation.
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After severe pollution in the 1980s, the International Commission for the Protection of the Rhine cut industrial discharges by 90%.
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Salmon returned to Basel in 2012 after a 130-year absence, thanks to fish ladders and restored gravel spawning beds.
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Floodplains were reconnected near Cologne to absorb overflow during high-water events, reducing pressure on urban levees.
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Wine-growing villages line its steep banks, where south-facing slopes and slate soils create ideal microclimates for Riesling.
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GPS-enabled navigation systems now guide ships through narrow locks, minimizing delays caused by human error or weather.