A new Viewpoint report from Stora Enso shows that retailers and brand owners who fully embrace the opportunities presented by sustainable packaging can achieve an increase in net sales of 2%-4% and an improvement in their EBIT-margin of 1.0%-2.5 % (p.p.). The importance of sustainability in the retail sector will increase as Millennials become a more dominant group of consumers, the report says.   According to the firm, 59% of Millennials, the generation born between 1980 and 2000, consider pa...