cigarette office Romania, 1970s. Man smoking a while working at a desk in an building Stock Photo 30 years ago smoking in

Ethics declarations Ethics approval and consent to participate Not applicable Consent for publication Not applicable Competing interests The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper

The average time for degradation of a Greenbutts filter is 7 days in compost and can be dispersed in water in minutes with 150 rpm agitation

Then I think of my family

Use an Antimicrobial Mouth Rinse: These rinses help kill bacteria linked to smoking and gum disease

Saying that if we prevent people from smoking then no one will have lung cancer is not true

Tuck and Roll: Use your thumbs and forefingers to roll the paper back and forth, tucking the cannabis inside while shaping the joint