In the peninsula and the Gulf of California, the process of colonial conquest imposed a process of anthropisation-colonisation of the social-nature relationship over modern and contemporary time. Since the 16th century, this change has been implemented through the insertion of the natural terrestrial and marine resources available on the Sudcalifornian territory within the framework of the world economy. The peninsula and the Gulf of California were subjected to a long-term process of looting and stripping of the territory described as ‘Asimetric Apropriation’ (which translates into a time line of four historical moments, some contemporaries, from the 16th century to the 21st century). At the beginning of this time line, the text describes how the Crown transferred control of resources (pearls, acuacultura, guano, salt, etc.) to private entrepreneurs responsible for extracting natural capital in order to sell it on global markets between the 16th century and the 20th century through various territorial transfer systems. This capitalisation/privatisation of coastal and marine resources during the 20th century was evidenced by a process of territorial financial speculation aimed at the development of mass tourism at the heart of the economic development model (third and fourth historical moment of the Asimetric Apropriation, which is analysed in the text. The proposed research methodology builds on the work we are doing in the field of environmental history, understood as a study on relations between society and nature throughout the modern and contemporary world, studied by analysing archive documents and literature from contemporaries, travellers or institutional documents. This methodological proposal involves the study of territorial, environmental and socio-economic changes and their impact on the natural capital of the Sudcalifornian territory, which leads to conflicts and fighting against extractivism and strikes it as an economic model. From the field of environmental history, the concept of extractivism is defined as the transfer of natural assets managed by the community to the market sphere, which has been disposed of by the villages and beneficial sectors of the business sector through this privatisation process. Similarly, the concept of asymmetric appropriation involves identifying how the transfer verified through extractivism and depriving the territory of its territorial impact on the architecture of the economic development model, generating episodes and realities of environmental injustice, leading to significant territorial imbalances. These territorial imbalances have a historical matrix that environmental history makes it possible to tell as a contínuum, but as a practice of colonisation of the territory until the beginning of the 21st century, as demonstrated by the study of the impact of financial capitalism on Lower California.