Chile is located in the Southern Cone of South America; it has a high diversity of landscapes, which have been considered by naturalists and scientists as an irreplaceable patrimony of nature. This country has more than 4,000 kilometers of latitudinal extension, with deserts, agricultural valleys, large mineral deposits, ancient forests, relict and endemic species, glaciers, dunes, indigenous cultures and an increasing economy. The main aim of this book is to contribute to the understanding of the environment in Chile. The first chapter focuses on understanding an important dimension of nature, describing the Chilean forests as one of the main natural patrimonies of the country. Then the human enforcement of conservation biodiversity and natural patrimony is presented. Topics such as plastic pollution in oceans, the role of the school education system, private protected areas and others are addressed. Then the book focuses on the potential impacts generated by climate change on the environment of Chile. Alternatives for sustainable development in the near future that take into account food security, soil erosion and climate change. The book finalizes with two issues which that are strongly linked to human activities, natural hazards and mining impacts. A history of natural hazards in Chile is presented, analyzing the changes in policy and the influence of socio-environmental events and dynamics on the current structure of risks in Chile determined by natural and human factors. Finally, an analysis of the impacts of mining associated with arsenic and copper is presented, describing the development of environmental standards, which aim to avoid or reduce the impacts on nature and humans.