The Holocene era ( the last twelve thousand years), has offered a very stable climate within which millions of species of life forms developed, all of them with specific interactions. This led to the birth of very complex and stable biological diversity. This stability is now fading due to the transformation of wild landscapes into monoculture fields and livestock areas, maritime overexploitation, the emission of greenhouse gases into the atmosphere, and soil degradation.
Our planet has a history of constant change. Man has made an obvious ecological impact since he learned to manipulate fire more than a million years ago. In the last 50 years the wild spaces which comprised 62% of the earth’s surface were reduced to 35% and we watched the disappearance of almost half of the world’s animals.