It's the first instalment of a new Front Burner segment, Please Explain, where Canadian voters come on and have their questions answered about important policy issues ahead of the 2019 federal election. Today, Front Burner theme song writer Joseph Shabason has a lot of questions about the party's climate policies. Is the carbon tax working? Would the Conservative plan be effective? Is the Green plan doable?

Our expert guest is Marieke Walsh, of the Globe and Mail, who published a comprehensive explainer last week about where the parties stand on carbon taxes, energy retrofits, and everything to do with Canada's greenhouse gas emissions.