How Soil Microbes and Intercellular Communication Affects Human Health

This makes me skeptical. Glyphosate stays put when sprayed. If it were falling in rainwater, we'd see it in plants dying to rainwater far earlier than in affects in humans.

"Glyphosate is highly adsorbed on most soils especially those with high organic content. The compound is so strongly attracted to the soil that little is expected to leach from the applied area. Microbes are primarily responsible for the breakdown of the product. The time it takes for half of the product to break down ranges from 1 to 174 days. Because glyphosate is so tightly bound to the soil, little is transferred by rain or irrigation water. One estimate showed less than two percent of the applied chemical lost to runoff (4). The herbicide could move when attached to soil particles in erosion run-off. Photodecomposition plays only a minor role in environmental breakdown. In water, glyphosate is strongly adsorbed to suspended organic and mineral matter and is broken down primarily by microorganisms also. Its half-life in pond water ranges from 12 days to 10 weeks."

http://pmep.cce.cornell.edu/profiles/extoxnet/dienochlor-gly...