Le emissioni di anidride carbonica delle quattro maggiori aziende energetiche elvetiche sono aumentate di oltre un quinto nel 2017. Dallo studio pubblicato venerdì dalla Fondazione per l'energia risulta inoltre che due terzi dell'elettricità da loro fornita ha ancora origine fossile o nucleare.
Dalle fonti rinnovabili, ricavano quindi solo il terzo rimanente, il 3,7% rappresentato dall'eolico, lo 0,2% dalla biomassa e lo 0,1% dal solare.
L'insieme della produzione di Alpiq, Axpo, BKW e Repower è quindi molto più "sporco" se paragonato a quello nazionale, conclude il rapporto.
ATS/dg
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