Students’ invention renders old bear spray cans harmless

Authorities in and around Yellowstone National Park and other popular tourist destinations inhabited by grizzly bears are facing a growing environmental dilemma: what to do with hundreds of discarded and unused bear pepper spray cans left at visitor centers,  and inside dumpsters and trash cans. For their senior capstone project, three Montana State University engineering students created a prototype machine that removes the irritating chemical, propellant, and crushes the can so it may be recycled. The Bozeman Chronicle reports.

Comments

[gregg]

why is this even an issue? why not just reuse them? how hard would it be to just collect the unused cans and reuse them, they could even sell them at a cheaper price for a profit.