The Department of History at York University hosted the annual Melville-Nelles-Hoffmann Lecture in Environmental History on March 20 at 4pm in the Schulich Private Dining Room. The lecture was delivered by Professor Sara B. Pritchard from Cornell University.
Professor Pritchard is a leading scholar in environmental history and science and technology studies whose new research examines the politics of light pollution and light-pollution science. She is the recipient of a National Science Foundation Scholars’ Award in Science, Technology and Society.
Professor Pritchard’s lecture examined the growing concerns of scientists in the early 1970s about light pollution for its astronomical, ecological and human health effects. These kinds of concerns have increased dramatically over the past decade. This talk will examine how the National Aeronautics & Space Administration (NASA) and the U.S. National Park Service (NPS) visualize artificial light at night, an emergent environmental problem. A close reading of several influential images shows how these institutions produce knowledge about light pollution. In particular, this lecture explored how NASA and NPS’s regimes of (im)perceptibility shape what we know—and do not know—about artificial light at night in distinct ways. At the same time, it considered the implications of these knowledge-making and visualization techniques for global social justice in the early 21st century.
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