Tim Hortons, Burger King, Domino's urged to be more like Pepsi

An international consumer group says Tim Hortons, Burger King and Domino's should be more like Pepsi - at least in the way it makes public where its cups, bags and cooking supplies come from.

The group, Sum of Us, is pressuring the parent company of the restaurant chains to make its supply chain more transparent in order to assess how it may be fueling deforestation in Canada and abroad. .

The consumer lobby says what worked with Pepsi can work on Restaurant Brands International: concerted public pressure. Pepsi has committed to an action plan to source sustainably farmed palm oil.

Sum of Us says from the palm oil in Tims' doughnuts to the beef in Burger King burgers and the cardboard boxes holding Domino's pizza,  supplies puchased by those RBI-owned chains could be encouraging the destruction of forests.  

Sum of Us campaign manager Emma Pullman suggests consumers can use social media to apply pressure:

"People do have a lot of power and companies have never been as brand conscious as they are now," she says.

Sum of Us is also working through a union that holds shares in the parent company to present a motion at the RBI annual general meeting next month. The resolution calls on the firm to make public its supply chain and promise to work toward zero deforestation.