In the broader context of climate change, specially concerning the level of CO2 emissions into the atmosphere that reaches record levels every year, the industrial sector, responsible for almost a quarter of direct global CO2 emissions, is beginning to play a crucial role in fighting global warming. Many companies of this sector therefore are leading the transition to a zero carbon economy, in order to fulfil the stringent targets specified in the last report "Global Warming of 1.5°C", published in October 2018 by the Intergovernmental Panel on Climate Change (IPCC): limit the global temperature increase to 1.5 °C and reduce human-made CO2 emissions of 45% by 2030 compared to 2010 levels, reaching "zero net” by 2050.