Greta Thunberg: 'Our future is at stake'

Swedish activist Greta Thunberg joined other young climate activists in Canada's energy heartland of Edmonton, Alberta, Canada.

Thunberg, who has mobilized a global youth movement against climate change, faced a difficult audience in Alberta where the energy sector provides 150,000 direct jobs and contributes more than C$71 billion ($54.1 billion) annually to Canada's gross domestic product.

Thunberg's Edmonton march, which is being organized by indigenous and environmental groups, comes days before a tight Canadian federal election in which climate change and the future of Canada's oil and gas sector are hot topics.