Carlos S. Dimas (History) was an invited speaker for the Consortium for History of Science, Technology and Medicine's working group Under Stormy Skies: Atmospheric Science, Technology, and Society. He delivered a paper entitled "State Visions: Exploring the Argentine Landscape in the Gran Chaco, 1870-1910" that looked at how engineers and armies used environments, weather, and climate to expand the Argentine state's national borders. The talk forms part of his project that looks at the role of meteorologists, astronomers, civil engineers, and oceanographers in the building of the Argentine nation-state from 1870 to 1970.