Anyone who has walked the Camino has unfortunately seen it - places where bottles or can have been dumped, rest areas under trees where chocolate wrappers have been left lying and yes those disgusting areas where toilet paper lays strewn around ..... bottles can take 450 to many thousands of years to break down, a can about 500 years before it oxidises and toilet paper a couple of months, not only harmful to the environment but a blight on the Camino.
A blog about the Pilgrimage to Santiago de Compostela