The Earth Day showing was particularly strong in Quebec where starting at 2 p.m on Earth Day (April 22, 2012) church bells rang across the province.

In Montreal an estimated 250,000 people gathered for a peaceful Earth Day march. The crowd gathered at Montreal's Place des Festivals before they inched their way along the kilometre-long stretch from Ste. Catherine St. toward Jeanne Mance Park, where they formed a massive human tree" to be photographed from above.

More than 50,000 people signed a Quebec Earth Day declaration calling for Canada to reverse its decision to withdraw from the Kyoto Protocol, and for Quebec to change its plans for northern development to make them more sustainable.

"Beyond the different reasons that may have drawn people was a shared concern for the future and what we're going to leave for our children and grandchildren," said Steven Guilbeault of Équiterre, commenting on the Montreal March.