Fascinating podcast - how the invisible fungal network of a forest helps move nutrients from the sun, air, rocks & death into living trees - and how these organisms communicate, share, ask for help, and even plan.  One thing to remember: most large-scale farming (organic or not) obliterates the microbial soil network.  They grow plants in dead soil to avoid weeds, adding nutrients (chemically or naturally) To help these (nutritionally depleted) crops survive.  Without this network, WE are cut off from this cycle of nutrients.  Composting, gardening, buying from small local farms with good practices - all of these are ways to get ourselves back in this loop!

RadioLab - From Tree to Shining Tree