Most young users put disposable e cigarettes in trash, creating huge streams of toxic and hazardous waste, as companies fail to take responsibility Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis Believe It or Not, 1 Vape has 20 Cigarettes Worth of Nicotine UC San Francisco Is Vaping Better Than Cigarettes? EDGE Vaping Vapes '95% safer' than cigarettes messaging backfired An updated overview of e cigarette impact on human health Respiratory Research Springer Nature Link