Erin Brckovich's Crowd-Sourced Cancer-Cluster Map

The map, covering the United States and some places in Canada, is built from individual reports. There is no information given that I can as to why a particular locale contains a "cancer cluster." Evidently, you have to research that out on your own.



Boing Boing had a piece recently on Brokovich's current environmental work and related issues, of this map is just a piece.