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In a single year, over 1.70 billion pounds of cigarette butts are collected as litter

Liber AC and Warner KE

What you really need is a device that delivers satisfying nicotine, tastes good, and doesn't require a PhD to operate

Their position is that e-cigarettes containing nicotine are undoubtedly harmful, should be strictly regulated and, most importantly, must be kept away from children, due to increased risks of cardiovascular diseases, lung disorders, and starting to smoke regular cigarettes

They found diacetyl in 39 of the 51 flavors they tested

Wood D, Mould M, Ong S, Baker E (2005) Pack year smoking histories: what about patients who use loose tobacco