Couple of interesting articles from Canadian Geo, Feb. 2011: http://www.canadiangeographic.ca/magazine/jf11/effect_of_urban_trees.asp http://www.canadiangeographic.ca/magazine/jf11/fungal_systems.asp -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gren.ca/pipermail/all_gren.ca/attachments/20110128/2e8580f0/attachment.html>