Interest & exchange in the dirt by Guylaine Couture - SOLDInterest & exchange in the dirt presents the mycorrhizal network, invisible to us but without which the forest would not exist. Professor Suzanne Simard has been researching this secret society since 1997. At short distance underground, there is an interesting and complex exchange between roots and fungi, one gives carbon while the other sends water, etc. Here is a very well organized arrangement that has existed for thousands of years without human