World Health Organization says e cigarettes 'undoubtedly harmful' World News FILED 31 July 2015, Berlin: A woman smokes an e cigarette. Alternatives to conventional cigarettes such as e cigarettes and tobacco heaters are on the advance worldwide. This is the conclusion of a Amazon.com: Fairy Tail 100 Years Quest T18: 9782811694920: Ueda, Atsuo, Mashima, Hiro: Books China remains the world's largest producer and consumer of tobacco, with roughly 300 million smokers and around 2.4 trillion cigarettes sold every year nearly 46% of the global total. Although the