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Setback for Prime Minister Justin Trudeau and his environmental policies just six months ahead of national polls
'It was a miracle we got the entire population out safely' Alberta Premier Rachel Notley
Oil facilities have escaped damage, officials say, and there have been no fatalities directly linked to the blaze
Authorities had expressed fear the fire could spread east to Saskatchewan province
Winds are pushing the flames east of the epicenter around the oil city
Blaze in Alberta's oil sands region will not be extinguished for "a very long time" until there is significant rain