Confusion surrounds the vaping crisis: Here's what we know and don't ABC News Is Vaping Worse Than Smoking Cigarettes? Get the Facts Secondhand smoke from vaping could be harmful to children: study ABC13 Houston Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC7 Chicago Health Risks of E Cigarettes and Vaping American Lung Association Environmental impacts of vaping and smoking David Suzuki Foundation