Why are commercial flights today slower than they were in the 1990s? This TED-Ed companion resource examines the rise and fall of the Concorde, supersonic flight, and the technological and environmental challenges that still shape commercial aviation. With 20 thought-provoking discussion questions, an in-depth writing prompt, and a classroom debate topic, this resource is ideal for high school and college students studying engineering, environmental science, economics, or aviation history. Perfe