He cleaned them in the early years, when they'd hauled lime and slag all day on the roads round Carlisle, and he was still cleaning them in 1985 when he had 26 of them.
Embrapa also created varieties of soya that are more tolerant than usual of acid soils (even after the vast application of lime, the cerrado is still somewhat acidic).
Some of the bodies remain trapped in the rubble. Parents who have lost their only child still come to the site, now covered in lime, every day to grieve and to talk with others.