The toxicity of pipeline politics originates with Harper - even though he aspired to be the hero of oil, gas and tar sands.

Canada had a reasonably good reputation for environmental responsibility - but Harper blew that away for a tough guy stance against emissions controls, cap and trade and started a personal vendetta against environmentalists, even giving CRA extra funds to prosecute environmentalists ... all at a time Obama was trying to clean the USA's green cred.

http://www.macleans.ca/politics/ottawa/stephen-harper-oils-worst-enemy/

Not sure if there's much coming back from 10 years of that and every enviro "woke" to Canada's supposed sins.   Hard to see an approach other than Notley's and Trudeau's having a chance at success.