I think Notley may be on the right track with 2 large petro chemical projects approved and a carbon tax at the provincial level instead of sending it off to Ottawa, never to be seen again in Alberta. The pipeline support at the Federal level is heartening as the approvals appear to me to be more in line with modernizing old lines by replacing with new higher capacity lines for the day when the aging lines may need to be closed. The previous Conservative government had a schedule for shutting down coal fired generation, NDP stepped it up a bit.  Coal spews a lot of stuff in the air besides carbon, the Forestburg mine scheduled to close in any event in 2022 provides 2.7 million tonnes of coal with a S content of .4%, that's 10400 tonnes.  
And to make it clear capping the eventual  daily output from the oil sands  is not a bad idea, it keeps a lot of options open for the future.