In this episode of Moteur de Recherche, Laure Patouillard answers the question: is it preferable to use electronic or paper invoices? For the sake of the environment, it would be preferable to use electronic invoices rather than traditional paper invoices from your service providers. At least that’s what Laure saw when she compared the ecological footprint of the two billing methods. She points out that if all households in the Belle Province that subscribe to Hydro-Québec opted for e-mail billing, this would reduce the emission of 900 metric tons of CO2 equivalent, which corresponds to the greenhouse gases stored by 1,000 poplar trees planted in Québec during their entire life cycle.