"A debate is raging in Alberta over plans to get more "dirty oil" out of the ground, which some say is in conflict with Canada's environmental commitments. BBC HARDtalk went to investigate.
When Hanna Fridhed welcomed us into her home in Fort McMurray last month, there was no door to walk through and no windows to look out of, just the charred remains of a house obliterated by fire.
The culprit? The Beast - the name given to the massive wildfire that swept through northern Alberta in Canada in May, destroying parts of Fort McMurray and forcing the evacuation of its roughly 90,000 residents.
For many environmentalists, the wildfire was not simply a natural disaster but partly the result of man-made climate change, a point brought uncomfortably close to home by Fort McMurray's proximity to Alberta's vast oil sands deposits.
The oil sands, sometimes referred to as "dirty oil", have long been a target of climate change campaigners who insist that the energy-intensive extraction of oil sands and the greenhouse gas emissions it generates, mean most of the remaining deposits must stay in the ground."