(180106) -- TORONTO, Jan. 6, 2018 (Xinhua) -- People walk on Bay Street in extreme cold weather in Toronto, Canada, Jan. 5, 2018. Extreme cold temperatures as low as minus 23 degrees Celsius have covered Toronto for 12 straight days since Dec. 25, 2017. (Xinhua/Zou Zheng) (gj)more(180106) -- TORONTO, Jan. 6, 2018 (Xinhua) -- People skate on the Nathan Phillips Square outdoor rink in extreme cold weather in Toronto, Canada, Jan. 5, 2018. Extreme cold temperatures as low as minus 23 degrees Celsius have covered Toronto for 12 straight days since Dec. 25, 2017. (Xinhua/Zou Zheng) (gj)more(180106) -- TORONTO, Jan. 6, 2018 (Xinhua) -- Lake Ontario is frozen in extreme cold weather in Toronto, Canada, Jan. 5, 2018. Extreme cold temperatures as low as minus 23 degrees Celsius have covered Toronto for 12 straight days since Dec. 25, 2017. (Xinhua/Zou Zheng) (gj)more