Inside ecosystems, natural and synthetic polymers have a special place
with respect to both environmental pollution and protection. They pla
y a double role, as remedy for pollution, and as pollutants themselves
. Starting from the literature data and also from our own results, a d
iscussion is initiated on the conditions of pollution reduction and tu
rning of the polymeric wastes into possible sources of raw materials a
nd/or energy, and on some of the criteria that might be applied in des
igning of environmentally-compatible polymeric materials, as well.