And then there were 28! Former MP Kent Hehr bows out of Calgary's mayoral race

Minister Kent Hehr responds to a question during Question Period in the House of Commons in Ottawa on Oct. 30, 2017. (THE CANADIAN PRESS/Adrian Wyld) Minister Kent Hehr responds to a question during Question Period in the House of Commons in Ottawa on Oct. 30, 2017. (THE CANADIAN PRESS/Adrian Wyld)

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Celebrities join Prince William for Earthshot Prize award

Celebrities joined Prince William in London on Sunday for the inaugural awards ceremony of his Earthshot Prize, an ambitious environmental program aimed at finding new ideas and technologies around the world to tackle climate change and Earth's most pressing challenges.