The  article  states  that  costs  have  not  been  fully  defined  but  it  isn't  difficult  to  estimate  the  minimum  cost.

At   $50/tonne  in  2022  the  annual  cost  will  be  approximately   $750  per  person  based  on  2010  per  capita  emissions  of  15  tonne  per  capita.

Total  Canadian  cost  will  be  between   $26  billion  and  $36.5  billion  depending  on  whether  you  use  the  2030  target  or  2014  emissions  actual.

However  you  look  at  it  it  is  a  lot  of  money  being  redirected  out  of  the  private  economy.