02 Nov 2017 --- Emmi, the largest Swiss milk processor, has committed to reducing its CO2 emissions by 25 percent by 2020. As an initial measure, the company converted all its Swiss sites to sustainable power at the start of 2017 Emmi is now taking another major step by converting all its European sites to 100 percent hydropower, thereby reducing its CO2 emissions by a further 17,500 tons per year.