参考答案

正确答案：B
解析：细节题。根据题干信息词local residents定位到第一个小标题下的末句So local residents，like many in poor communities around the globe，have faced the problem of investigating their claim that industries on their doorsteps are making them sick，即：当地居民声称他们门前的工业导致他们生病，故选B。