Soda can - alternative processes
In my manufacturing class, we talked about an alternative way of soda can forming that a Japanese company created. Here, the manufacturing process itself is fundamentally different from traditional processes and automatically, the ecological footprint of making soda cans is reduced.
Japanese packaging manufacturer, Toyo Seikan, about how they reduce effect on the environment via a novel way of can production, called TULC (Toyo ULtimate Can).
National Science Foundation & Department of Energy study on Assessment of Environmentally Benign Manufacturing Technologies
pp.207-209 of the report highlights the Japanese means of manufacturing.
Online demos on how cans are drawn normally: