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earth day 2015

These Eco-Inventions Are Canada's Earth Day Gifts

From electrifying streetcars in the 1880s to generating energy from zoo poo today.
Joshua Ostroff

WATCH: Sign The Earth Day Flag, Change The World

Sasha Nagy

There's Only One Thing You Need To Watch On Earth Day And This Is It

By Arti Patel, The Huffington Post Canada