Why can't scientists agree on e cigarettes? Science The Guardian E Cigarettes Circulation Vaping companies sue to delay U.S. e cigarette review Los Angeles Times A scoping review on e cigarette environmental impacts A sweeping scientific review is raising new concerns about the long term health effects of vaping. Nicotine based e cigarettes may pose a serious cancer risk, according to a major new review that challenges the The carcinogenic potential of nicotine containing e cigarettes