Mankind has actively modified the environment since the Stone Age. It started with grass-land and forest clearance, and accelerated with the introduction of agriculture and live-stock farming. Wood was used as fuel and to construct homes. In the modern era, the ex-ploitation of forests and connected natural resources have caused devastating effects for the environment. In the last fifty years, the tropical forest surface has been halved, from a global coverage of 14% to a mere 6% –equivalent to approximately 8-9 million km2 today. This might seem like a substantial area, but in 1947 it was an estimated 16 million km2. Today, the most affected forests are located in eastern Asia and the Pacific, including Myanmar, Thailand, Laos, New Caledonia, Borneo, Sumatra and the Philippines. Of the original tropical forest extension, made of mangroves and 15-metre tall trees, only 5% now re-mains. Even the South American Atlantic forest surface, which extends from Brazil to Ar-gentina, has been reduced by 85%. The problem does not just impact habitat variety and biodiversity: large-scale deforesta-tion has repercussions for local climates too. They are becoming progressively more arid due to a significant decrease in rainfall intensity and desertification. Furthermore, plant roots are like the veins and capillaries of the earth, providing an important structural ele-ment. This is why deforestation inevitably leads to soil erosion and major landslide risks. All in all, deforestation is one of the most critical factors responsible for the rise of global temperatures. Several reports by the International Panel on Climate Change (IPCC) have affirmed that, after the use of fossil fuels, deforestation of large green areas is the most important human activity connected to global warming. Plants also produce energy and constituent elements by absorbing carbon from the atmosphere and the ground, trans-forming some of the greenhouse gases – which contribute to the planet’s temperature increase – into the air we breathe. There is some good news, however. Over the last century, the forests in Europe have started to regrow. This is due to several factors: wood is no longer a key fuel in industry and transport, and its role in construction has been drastically reduced. Moreover, during the second half of the 20th century, the European Union’s Common Agricultural Poli-cy (CAP) has defined a set of communal laws to optimize agricultural production. Through new techniques and automation, plantation and livestock farming require less space today than in the past. Also, most of the European population is concentrated in urban areas. In addition to being a moral obligation, environmental conservation has in-creasingly become a tourism-oriented business. Therefore, thanks to a mix of economic growth and a stronger environmental conscience, European forests have grown by ap-proximately one-third in the past 100 years.