Canada has had some weird weather this year and that has had an impact on the fall colours now on display in some areas. As well, historic patterns of when trees are at their most colourful, and how colourful, may be shifting due to climate change. ...
Although day length, light, temperature, ground moisture and insects all affect fall colours, scientists say that climate change might also be having an impact. They cite a trend of earlier springs and warmer autumns.
"We have evidence that the growing season of the trees is being influenced each year by the climates that they experience," Cooke says.
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