Critical Waste Lab is a four-week online seminar on waste in all its forms: what counts as waste, who makes it, who handles it, where it goes, and how it shows up in our own lives. Drawing on 15 years of work across philosophy, ecology, and materiality, we’ll examine waste through policy and place, and through imagined and embodied realities. We’ll follow it from the first city drains to the junkyard orbiting overhead: how cities learned to hide their trash, what different cultures count as waste, who handles it, and how a building, a meal, or even an hour of scrolling becomes waste.