Toxic waste dumps involve a huge price tag for improvement and an even larger price for neglect. Brazzaville, the capital of Congo is also one of the dirtiest cities in the world. Air pollution from ...

Do you live in one of the dirtiest cities in America? While there are a few streets in each city that might not be the ...

Notably, the 10 dirtiest cities with a population of over 1 lakh ... making it the largest cleanliness survey in the world.

making it the world's single biggest environmental health risk, the WHO, a United Nations agency, said last month. Thirteen of the dirtiest 20 cities were Indian, with New Delhi, Patna ...