If you have not read the post, I would ask that you do so. I mean no disrespect to you, but I disagree with your statement based on the fact that  have been sending soil samples to credibole labs for several years now and have received results that surprised me. David Keith, Harvard PHD (the most vocal advocate for SAI/Geoengineering)has stated many times that Barium, Aluminum, Stratium and other metals would be "possible" metals that could be sprayed in nano particles to cool the climate. None of the metals he mentioned are organic or naturally found in our atmosphere yet ALL of the metals he mentioned have been listed in unusually large amounts on virtually every one of the soil sample lab results I have received. I have sent samples to several different labs and they have all come up with the same results.