If there really were the political will to end cigarette use, there are ways.

CNN: Why cigarettes are here to stay

"They'd go out for a cigarette at the end of the drive with a member of staff, " she said.

BBC: Court sketch of defandants

Was he smiling, was he sucking at the end of a cigarette, did he wave?

NEWYORKER: Naima

According to the National Cancer Institute and American Cancer Society, secondhand smoke is the combination of two types of smoke that is produced when burning tobacco: the smoke that comes from the burning end of a cigarette, cigar or pipe and the smoke that is exhaled by the smoker.

CNN: Study: Smoke-free laws may cut heart attack hospitalizations

The deal, between the big cigarette companies and anti-tobacco lawyers, proposed to end America's 40-year pitched battle over smoking.

ECONOMIST: Chewing up tobacco

Companies produce and sell more than 400 cigarette brands in the country, ranging from the high-end Zhonghua and Double Happiness to cheaper brands like Little Panda and Yellow Pagoda.

CNN: China clouded in cigarette smoke

So when there are heavy winds you often end up walking through a swirling fog of candy wrappers and cigarette butts.

FORBES: Hey Philadelphia: It's Time To Embrace The Most-Toxic Title

At the end of the first scene, Celia can choose to light a cigarette or not.

ECONOMIST: Why is the laughter so sorrowful at an Ayckbourn play?