[Terrapreta] Coal as a soil additive

[Kurt Treutlein]

Sean K. Barry wrote:
> Hi Mark and AK,
>  
> Doesn't coal contain levels high of mercury that are released to the 
> environment (unacceptable) when burned in a coal fired power plant? 
And then there's all that radioactive Thorium that a lot of coal 
contains. Some coalfired powerplants put out more radioactive 
contamination than than all the nuclear plants combined (minus Chernobyl 
of course).

Kurt
coal instead of charcoal goes against everything we are trying to do in TP.