EcoWatch: On Nov. 5, 2015, a mine-waste dam collapsed at an enormous iron mine in southeastern Brazil. The wave of toxic waste was at least twice the volume of the Johnstown Flood and wiped out buildings and bridges more than 40 miles downstream. Using post-spill satellite imagery and Google Earth, we have produced a bird`s-eye view of the devastation wrought by the deluge of arsenic-laced sludge.
During the spill, we reported extensively on the immediate aftermath visible on satellite imagery, the remaining...