If everyone avoided idling their cars for a few minutes a day, Canadians could prevent 2.8 million tonnes of climate-changing gas from entering the air.
If every Canadian turned the tap off while brushing their teeth, 490 billion litres of water could be saved annually.
And if every household in the country switched to compact fluorescent bulbs, it would have the same impact as taking 100,000 cars off the road.
"We just want people to know that even small changes can have a big impact," said Samantha Newton, who is the manager of communications for zerofootprint.
Newton's organization is one of about 80 groups gathered in Nathan Phillips Square today for the second annual Green Toronto Festival.
One of those other groups is the Kortright Centre for Conservation of Woodbridge. A large green sunflower, with solar panel levels and wind-turbine petals, was displayed in front of its booth.
"Each leaf has 10 watts of solar power, so with six leaves, that makes 60 watts," said Shon Sorensen, who is an instructor at the centre. "On a windy day, the wind turbine can produce 90 watts - so if you put the two together you're looking at 150 watts."
A small water pump at the base of the flower shows the energy produced by the panels at work. Children are able to cover a panel, and see the water pressure drop.
"It's great to see even a 3-year-old make that connection - sun and energy. No sun, no energy," he said.
