An energy-thirsty world will need “every drop” of growing production in Canada’s oil sands, but the industry will need to reassure a skeptical public that development can be done in an environmentally sustainable way, the International Energy Agency’s chief economist says.

With countries gathering in Qatar this week for the annual United Nations climate change talks, Canada’s expanding oil sands production is again in the spotlight. Canada is routinely vilified at such meetings for being a laggard in battling global warming and for developing one of the world’s most emissions-intensive sources of crude.

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