“Main city?”
“I’ll explain…” He zooms in closer, this time to the South-West, green with vegetation, dark with water: lakes and rivers… “This…” His finger trails a curling line… “… is the River Guarapiranga. And these are the network of dams constructed in the early twentieth century. The purpose of the dams was to create a reservoir to supply drinking water for São Paulo and the greater city area. Also to provide hydro-electric power. The reservoir is supplied by a network of smaller rivers and brooks, many of which have travelled through the main city…”
“James, this makes an interesting travelogue, but where is it taking us?”
“Bear with me…”
Charlotte nods decisively, jerking her chin at me to pay attention to the screen.
… James continues. “Over time, there were increasing governm
