Saturday marks the 21st World No Tobacco Day. In accordance with this year's theme "Tobacco-Free Youth", China has launched a variety of campaigns, persuading youngsters not to get addicted to smoking.

More than 2,000 pupils from southern China's Guangdong Province signed their names on a long scroll, vowing to stay away from tobacco.

"Both my uncle and grandfather smoke. I often urge them to kick the bad habit so that I will not have to inhale their secondhand smoke."

Meanwhile, over 7,000 taxis in the southwestern city of Kunming have put up tobacco-free signs, warning that smoking is harmful to one's health. Here is a taxi driver.

"People can easily notice eye-catching signs on taxis. Some smokers will voluntarily refrain from smoking at the sight of them. It really does work."

Most locals agree that smoking in public should be prohibited.

The World No Tobacco Day was initiated by the World Health Organization in 1987, aiming to draw global attention to the tobacco epidemic and its lethal effects.