Forests Ontario

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<p>The inner bark of the blue ash turns blue when exposed to air, and was once used to <strong>make dyes.</strong></p>

The inner bark of the blue ash turns blue when exposed to air, and was once used to make dyes.

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Climate Change

Grade 9 to Grade 12

Climate change is a significant and last change in weather patterns over long periods of time. Human activities alone can have an impact on the levels of carbon in the atmosphere, as do land use decisions.

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