One Health, we are living in an interconnected world Section: Artículo Especial AuthorsEduardo Galante Position Profesor Emérito. Director del Museo de la Biodiversidad de la Universidad de Alicante. Instituto de investigación CIBIO (Centro Iberoamericano de la Biodiversidad). Universidad de Alicante. España. Contact email: galante@ua.es Abstract We address the reductionist view of health: that a major part of the population restricts to the investment in healthcare infrastructure, professionals and medications, without taking into account the interconnection with the environment. The World Health Organization (WHO) is warning that a high proportion of diseases are a consequence of the global climate change, the contamination, and the destruction of the natural environment (among others), which would represent over 250,000 additional deaths per year. Despite this alarming scenario, society remains unaware to a high extent. Scientists and health professionals have been warning for decades about the consequences of environmental degradation for human health; for example, many medications are primarily based on plants and animals living in threatened ecosystems. The One Health concept highlights the interconnection between human, animal and environmental health. The COVID-19 pandemic is an example of this connection. The crisis showed the need for a change in direction, but this reaction was temporary, and technology has been prioritized again over respect for nature.The conclusion of this text is that the responsibility for this change of approach lies both in political leaders as in the society itself. Models of development that respect the environment must be adopted, to prevent collapse and guarantee a healthy future. The adoption of the One Health concept is essential for this change. 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