Carbon-cutting strategy should take a couple of pages from the campaign against smoking The fight to phase out smoking was a public policy success, and two government actions in particular are worth emulating when it comes reducing carbon emissions, writes Eric Campbell. Social Sharing Eric Campbell · for CBC News Opinion · Posted: Apr 22, 2021 4:00 AM ET | Last Updated: April 22 Cars and trucks are responsible for almost one quarter of all of Canada's carbon emissions.(Rick Bowmer/The Associated Press)