Forests are stressed from climate change and trees are communicating that stress to each other. Tree scientist Suzanne Simard explains how. Read more: http://www.cbc.ca/news »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS Connect with CBC News Online: For breaking news, video, audio and in-depth coverage: http://bit.ly/1Z0m6iX Find CBC …
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