If current trends hold, the number of deaths that are blamed on tobacco use will rise to eight million a year in 2030, the WHO said in a briefing on Wednesday.
About 80 per cent of tobacco-related deaths forecast for 2030 are expected in low- and middle-income countries,
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"If we do not close ranks and ban tobacco advertising, promotion and sponsorship, adolescents and young adults will continue to be lured into tobacco consumption by an ever-more aggressive tobacco industry," said WHO director-general Dr Margaret Chan.
"Every country has the responsibility to protect its population from tobacco-related illness, disability and death."
Among the dead this year, five million were tobacco users or former users, while more than 600,000 died from second-hand smoke,
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Tobacco use is believed to have caused the deaths of 100 million people in the 20th century.
Barring dramatic change, the tally for this century could soar to one billion people, the WHO warned.
"We know that only complete bans on tobacco advertising,
Asian college of knowledge management promotion and sponsorship are effective," said Dr Douglas Bettcher, the director of WHO's Prevention of Noncommunicable Diseases department.
"Countries that introduced complete bans together with other tobacco control measures have been able to cut tobacco use significantly within only a few years."
PR