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         credit:Photo/GRAHAM PAINE
         caption:Thousands across the GTA took part in Earth Hour celebrations March 29, including these candlelight walkers along Bloor Street.
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         credit:Photo/ALESSANDRO GAROFALO
         caption:Participants prepare their illumination for an Earth Hour candlelight walk through Withrow Park
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         caption:The three towers of the Sun Life Financial Centre at the corner of Islington and Bloor blend into the night sky with lights off during Earth Hour, March 29.
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         caption:Julian Larsen-Hunt, 6, left, and Jeffrey Caulfield share some candlelight by an Earth Hour poster during a social event at Caulfield's East York home.
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         caption:Ray Lalonde, right, Josie Lalonde and Carolyn Broda join in a candlelight sing-a-long at the Caulfield residence.
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         caption:Community members join the Earth Hour candlelight parade in Withrow Park..
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         caption:Yaari Magenheim, 9, joins the Earth Hour candlelight parade in Withrow Park.
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