Toxins in marijuana smoke may be harmful to health, study finds | CNN
Pot 101 Update: What Are The Laws In California Surrounding Second-hand Marijuana Smoke? | Jefferson Public Radio
Canada should take cue from New Zealand on smoking ban, Cancer Society says - Winnipeg | Globalnews.ca
Montreal says cannabis can be smoked wherever cigarettes are allowed | CBC News
Tobacco use in California 2020
California's smoking age goes up to 21 today - ABC7 San Francisco
Despite drop in popularity, cigarette smoking continues to be a leading cause of US cancer deaths – The Hill
U.S. adult cigarette smoking rate hits new low, but vaping? - Los Angeles Times
Weed smoker's lungs vs. smoker's lungs vs. non-smokers lungs
Cannabis users who put tobacco in joints 'more likely to be addicted' | Drugs | The Guardian
E-Cig Stigma: California Declares Vaping a Public Health Risk
California bill would ban single-use cigarette filters - Los Angeles Times
A legal history of smoking in Canada | CBC News
How California's Tobacco Laws Are Actually Reducing Lung Cancer Deaths
Raising the legal smoking age in Canada is 'inevitable': advocate - National | Globalnews.ca
S.F. bans tobacco smoking inside apartment buildings, allows cannabis smoking
Smoking costs 45,400 lives, $16.2B in a year, study finds | CBC News
Tobacco use in California 2021
Emphysema Risk Is Higher in Marijuana Smokers Than Cigarette Smokers | Everyday Health
Tobacco use in California 2020
Fresno CA bans smoking,vaping inside multi-unit housing | The Fresno Bee
Cannabis 'may be worse than tobacco smoke for the lungs'
Smoking pot vs. tobacco: What science says about lighting up | CTV News
How California's smoking bans are broadening – Orange County Register
Opinion: Here's why banning flavored tobacco is the wrong approach for San Diego - The San Diego Union-Tribune
