Boris Johnson: Humanity is reaching a turning point on climate change

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He warned that global temperature rises were already inevitable, but called on his fellow leaders to commit to major changes to curb further warming.

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Prime Minister Justin Trudeau said Canada will cap oil and gas emissions to reach net zero by 2050 in his speech to world leaders at COP26. CTV's Daniele Hamadjian is in Glasgow, Scotland, with a preview of what you need to know about the 2021 UN Climate Change Conference.