How Toronto’s ravines have become critically ill — and how they can be saved
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Other links related to Toronto’s Ravine:
Ecological collapse of Toronto’s ravine system has begun, researcher says
How much would an inventory of trees in Toronto’s ravine system cost? City will find out
Forest ecologist Eric Davies on Toronto’s oldest trees
Studies say Toronto’s ravines and inner harbour are in trouble
Many of Toronto’s trees are older than the city itself. So why aren’t we doing more to protect them?
10 of Toronto’s most breathtaking trees — our ravine queens and urban legends
One man’s quest to restore native Canadian trees to Toronto
