E Cigarettes the Good, the Bad and the Ugly DAN Southern Africa Over 100 million people worldwide use e cigarettes, says WHO SWI swissinfo.ch World smoking rates decline, but e cigarette use raises fresh concerns WHO Single use e cigarettes: The environmental impact of disposable vapes: A growing threat to waste management WMW Charting Global Tobacco Use by Country and Sex WHO: E Cigarettes Threaten Fight Against Global Tobacco Use