When we talk about products, and thus about materials, renewability must be thought as a material’s ability to regenerate in time (months or years) to be again available for the system. With the growth of world population, ever changing lifestyles and consumerism, disposable products are leading to an ever increasing exploitation of natural resources: an aspect that needs to be controlled indeed favouring renewable materials and products. Without an adequate control over consumptions, the steady growth in resources demand will necessarily lead to a system breakdown, a big defeat both on the environmental and the economic side.  Safety and protection of “natural” assets are among the core topics in national and community legislation. Environmental policies and interna...