Latin American labor has a well-established historiography, in dialogue with trends outside of the region. Environmental history is a newer and more exploratory field. In basic terms, environmental history explores the relationships of humans with the natural world, sometimes referred to as “nonhuman nature.” This can include how humans have affected the natural world, how the natural world has affected human history, and histories of human ideas and belief systems about nature. Labor and environmental history grows from explorations of the connections between these two spheres. Humans interact with the natural world through their labor and from their class perspective. The natural world shapes the work that people do and the institutions and structures humans create to organize and control labor. Changing labor regimes change the ways that humans interact with, and think about, the natural world. Both labor and environmental histories are in some senses investigations of how humans relate to nature. This essay sets Latin American labor and environmental history in global historical context. After offering a chronological summary, it briefly examines connections between U.S. Latino and Latin American labor and environmental histories, and ends with a discussion of contemporary Latin American critical environmentalisms.