A maze of over 40,000 kilometres (25,000 miles) of pipes located at the mouth of the Seine where it spills into the Channel, the TotalEnergies refinery is working full throttle to keep planes flying and trucks running.
Halfway up a 40-metre-high metal tower, the head of the refinery's technical division, Elise Thomazo, stops to explain the workings of the facility over the continuous hum of the machinery.
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