In its most recent tree study, the City of Toronto recorded 116 different species growing on its streets and in its parks. Of those, three stand out as problem trees: Norway maple, silver maple ...

The Crown says a lack of oversight on the part of a world-renowned Alberta ski resort led to endangered trees being cut down five years ago. The Lake Louise resort in Banff National Park pleaded ...

Crown abrasion is a sign that tree stands are too dense and competition among trees is undermining healthy growth. However, crown abrasion can actually help some species.

In South America, which is home to the Amazon Rainforest, 3,356 out of the 13,668 assessed tree species are at risk of extinction due to deforestation for crop farming and livestock ranching.